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77a0cfafa9
1311785 Commits
Author | SHA1 | Message | Date | |
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Linus Torvalds
|
77a0cfafa9 |
for-6.13/block-20241118
-----BEGIN PGP SIGNATURE----- iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmc7S40QHGF4Ym9lQGtl cm5lbC5kawAKCRD301j7KXHgpjHVD/43rDZ8ehs+IAAr6S0RemNX1SRG0mK2UOEb kMoNogS7StO/c4JYW3JuzCyLRn5ZsgeWV/muqxwDEWQrmTGrvi+V45KikrZPwm3k p0ump33qV9EU2jiR1MKZjtwK2P0CI7/DD3W8ww6IOvKbTT7RcqQcdHznvXArFBtc xCuQPpayFG7ZasC+N9VaBwtiUEVgU3Ek9AFT7UVZRWajjHPNalQwaooJWayO0rEG KdoW5yG0ryLrgCY2ACSvRLS+2s14EJtb8hgT08WKHTNgd5LxhSKxfsTapamua+7U FdVS6Ij0tEkgu2jpvgj7QKO0Uw10Cnep2gj7RHts/LVewvkliS6XcheOzqRS1jWU I2EI+UaGOZ11OUiw52VIveEVS5zV/NWhgy5BSP9LYEvXw0BUAHRDYGMem8o5G1V1 SWqjIM1UWvcQDlAnMF9FDVzojvjVUmYWvcAlFFztO8J0B7SavHR3NcfHwEf57reH rNoUbi/9c4/wjJJF33gejiR5pU+ewy/Mk75GrtX3xpEqlztfRbf9/FbPCMEAO1KR DF/b3lkUV9i2/BRW6a0SpZ5RDSmSYMnateel6TrPyVSRnpiSSFO8FrbynwUOa17b 6i49YDFWzzXOrR1YWDg6IEtTrcmBEmvi7F6aoDs020qUnL0hwLn1ZuoIxuiFEpor Z0iFF1B/nw== =PWTH -----END PGP SIGNATURE----- Merge tag 'for-6.13/block-20241118' of git://git.kernel.dk/linux Pull block updates from Jens Axboe: - NVMe updates via Keith: - Use uring_cmd helper (Pavel) - Host Memory Buffer allocation enhancements (Christoph) - Target persistent reservation support (Guixin) - Persistent reservation tracing (Guixen) - NVMe 2.1 specification support (Keith) - Rotational Meta Support (Matias, Wang, Keith) - Volatile cache detection enhancment (Guixen) - MD updates via Song: - Maintainers update - raid5 sync IO fix - Enhance handling of faulty and blocked devices - raid5-ppl atomic improvement - md-bitmap fix - Support for manually defining embedded partition tables - Zone append fixes and cleanups - Stop sending the queued requests in the plug list to the driver ->queue_rqs() handle in reverse order. - Zoned write plug cleanups - Cleanups disk stats tracking and add support for disk stats for passthrough IO - Add preparatory support for file system atomic writes - Add lockdep support for queue freezing. Already found a bunch of issues, and some fixes for that are in here. More will be coming. - Fix race between queue stopping/quiescing and IO queueing - ublk recovery improvements - Fix ublk mmap for 64k pages - Various fixes and cleanups * tag 'for-6.13/block-20241118' of git://git.kernel.dk/linux: (118 commits) MAINTAINERS: Update git tree for mdraid subsystem block: make struct rq_list available for !CONFIG_BLOCK block/genhd: use seq_put_decimal_ull for diskstats decimal values block: don't reorder requests in blk_mq_add_to_batch block: don't reorder requests in blk_add_rq_to_plug block: add a rq_list type block: remove rq_list_move virtio_blk: reverse request order in virtio_queue_rqs nvme-pci: reverse request order in nvme_queue_rqs btrfs: validate queue limits block: export blk_validate_limits nvmet: add tracing of reservation commands nvme: parse reservation commands's action and rtype to string nvmet: report ns's vwc not present md/raid5: Increase r5conf.cache_name size block: remove the ioprio field from struct request block: remove the write_hint field from struct request nvme: check ns's volatile write cache not present nvme: add rotational support nvme: use command set independent id ns if available ... |
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Linus Torvalds
|
3d1b536c13 |
ata changes for 6.13
- Fix typos in comments (Yan Zhen) - Remove unused macro definitions (Damien Le Moal) - Switch back to the .remove() callback (Uwe Kleine-König) - Make use of the get_unaligned_be24() helper instead of open coding (Andy Shevchenko) - Refactor and cleanup ata_scsi_simulate() command emulation, such that all commands use ata_scsi_rbuf_fill() with its own callback (Damien Le Moal) - Improve ata_scsi_simulate() command emulation by accurately setting the SCSI command residual (number of bytes not filled) in the command reply (Damien Le Moal) - Add missing iommus property in ahci-platform device tree binding (Frank Wunderlich) -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRN+ES/c4tHlMch3DzJZDGjmcZNcgUCZzthbQAKCRDJZDGjmcZN cvgtAQDDzKLg9UQhJou7nAjrdyJi7gZBy5o0Q0KIjMOqgnmz8wEA6HC+EWOjH3Fq 3f1nwxXGKR7T+bVUZpYfB+YTB8ly+g0= =0XKN -----END PGP SIGNATURE----- Merge tag 'ata-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux Pull ata updates from Niklas Cassel: - Fix typos in comments (Yan Zhen) - Remove unused macro definitions (Damien Le Moal) - Switch back to the .remove() callback (Uwe Kleine-König) - Make use of the get_unaligned_be24() helper instead of open coding (Andy Shevchenko) - Refactor and cleanup ata_scsi_simulate() command emulation, such that all commands use ata_scsi_rbuf_fill() with its own callback (Damien Le Moal) - Improve ata_scsi_simulate() command emulation by accurately setting the SCSI command residual (number of bytes not filled) in the command reply (Damien Le Moal) - Add missing iommus property in ahci-platform device tree binding (Frank Wunderlich) * tag 'ata-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux: dt-bindings: ata: ahci-platform: add missing iommus property ata: libata-scsi: Return residual for emulated SCSI commands ata: libata-scsi: Remove struct ata_scsi_args ata: libata-scsi: Document all VPD page inquiry actors ata: libata-scsi: Refactor ata_scsiop_maint_in() ata: libata-scsi: Refactor ata_scsiop_read_cap() ata: libata-scsi: Refactor ata_scsi_simulate() ata: libata-scsi: Refactor scsi_6_lba_len() with use of get_unaligned_be24() ata: Switch back to struct platform_driver::remove() ata: libata: Remove unused macro definitions ata: Fix typos in the comment |
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Linus Torvalds
|
c14a8a4c04 |
for-6.13-tag
-----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE8rQSAMVO+zA4DBdWxWXV+ddtWDsFAmc0zT4ACgkQxWXV+ddt WDtThRAAhzSSiHcJqTfCL5nHh7w85MNEVw28o1ETgXSYJmx0JOWLE7Znlp2FV7jj IbYkFfF2gXJzYvRZkcXB/TAHV9KJG5yZIBZfccbM+9db9f8xkImVKMuqQRXPU41R ppSCmqZTeujtt8ucsaJkMpm6pzECKJCJaGOsMJ8fiqKpo89dKO3eGAVboSbpPF4C r0YmppiBwSP/cCXQCqWxZRbqPGN+lUgZpIGNRi157kehfmRHlVVJTO1pgqK8PCXb uIT09Kulppfez8+1A10CPcniDTyinLik/qLTNlzdWoDBL4iNJMg0A0wsA04AJVf0 PdOS0REusiv3QcEIO6PefuRFRRfXcSLPpPDUceltJT5O0uM2gUqf2C7dEHXUGU3o TdgYlbQpsJWpZ7VGWQDZeGGV04lOPQvu0LGLPgEerUQd5H9ABa0dX8Fn0sPhKsa8 whpAcdfE4rdNxB2OJFnqQeFq0z3cSjP/rvKlluCmAj97QYI+kiu3QyhemcT1YSC9 U7n5Ya9IzIYCN3ml54q3hEgyD0IVGGG20GuUmqC9XSP9mrQRC8I1g7v26AiOTrrk VhgSdtMmphDxXudifsnYMaQ0Z1QqiUrW1SM/prAEOnBYCo75+HDsTgrq9ithgHoI 4xz4YXJyMRs18qfTJctXC1wmGuz5plTdQrwarHdNsELN5HEyqX4= =aAcf -----END PGP SIGNATURE----- Merge tag 'for-6.13-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux Pull btrfs updates from David Sterba: "Changes outside of btrfs: add io_uring command flag to track a dying task (the rest will go via the block git tree). User visible changes: - wire encoded read (ioctl) to io_uring commands, this can be used on itself, in the future this will allow 'send' to be asynchronous. As a consequence, the encoded read ioctl can also work in non-blocking mode - new ioctl to wait for cleaned subvolumes, no need to use the generic and root-only SEARCH_TREE ioctl, will be used by "btrfs subvol sync" - recognize different paths/symlinks for the same devices and don't report them during rescanning, this can be observed with LVM or DM - seeding device use case change, the sprout device (the one capturing new writes) will not clear the read-only status of the super block; this prevents accumulating space from deleted snapshots Performance improvements: - reduce lock contention when traversing extent buffers - reduce extent tree lock contention when searching for inline backref - switch from rb-trees to xarray for delayed ref tracking, improvements due to better cache locality, branching factors and more compact data structures - enable extent map shrinker again (prevent memory exhaustion under some types of IO load), reworked to run in a single worker thread (there used to be problems causing long stalls under memory pressure) Core changes: - raid-stripe-tree feature updates: - make device replace and scrub work - implement partial deletion of stripe extents - new selftests - split the config option BTRFS_DEBUG and add EXPERIMENTAL for features that are experimental or with known problems so we don't misuse debugging config for that - subpage mode updates (sector < page): - update compression implementations - update writepage, writeback - continued folio API conversions: - buffered writes - make buffered write copy one page at a time, preparatory work for future integration with large folios, may cause performance drop - proper locking of root item regarding starting send - error handling improvements - code cleanups and refactoring: - dead code removal - unused parameter reduction - lockdep assertions" * tag 'for-6.13-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (119 commits) btrfs: send: check for read-only send root under critical section btrfs: send: check for dead send root under critical section btrfs: remove check for NULL fs_info at btrfs_folio_end_lock_bitmap() btrfs: fix warning on PTR_ERR() against NULL device at btrfs_control_ioctl() btrfs: fix a typo in btrfs_use_zone_append btrfs: avoid superfluous calls to free_extent_map() in btrfs_encoded_read() btrfs: simplify logic to decrement snapshot counter at btrfs_mksnapshot() btrfs: remove hole from struct btrfs_delayed_node btrfs: update stale comment for struct btrfs_delayed_ref_node::add_list btrfs: add new ioctl to wait for cleaned subvolumes btrfs: simplify range tracking in cow_file_range() btrfs: remove conditional path allocation in btrfs_read_locked_inode() btrfs: push cleanup into btrfs_read_locked_inode() io_uring/cmd: let cmds to know about dying task btrfs: add struct io_btrfs_cmd as type for io_uring_cmd_to_pdu() btrfs: add io_uring command for encoded reads (ENCODED_READ ioctl) btrfs: move priv off stack in btrfs_encoded_read_regular_fill_pages() btrfs: don't sleep in btrfs_encoded_read() if IOCB_NOWAIT is set btrfs: change btrfs_encoded_read() so that reading of extent is done by caller btrfs: remove pointless iocb::ki_pos addition in btrfs_encoded_read() ... |
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Linus Torvalds
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3e7447ab48 |
A lot of miscellaneous ext4 bug fixes and cleanups this cycle, most
notably in the journaling code, bufered I/O, and compiler warning cleanups. -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEK2m5VNv+CHkogTfJ8vlZVpUNgaMFAmc7NN4ACgkQ8vlZVpUN gaMJRAf+Oc3Tn/ZvuX0amkaBQI+ZNIeYD/U0WBSvarKb00bo1X39mM/0LovqV6ec c51iRgt8U6uDZDUm6zJtppkIUiqkHRj+TmTInueFtmUqhIg8jgfZIpxCn0QkFKnQ jI5EKCkvUqM0B347axH/s+dlOE9JBSlQNKgjkvCYOGknQ1PH6X8oMDt5QAqGEk3P Nsa4QChIxt2yujFvydgFT+RAbjvY3sNvrZ7D3B+KL3VSJpILChVZK/UdFrraSXxq mLO5j4txjtnr/OLgujCTHOfPsTiQReHHXErrSbKhnFhrTXLD0mZSUgJ6irpaxRQ5 wQHQzmsrVwqFfqPU3Hkl8FGeCR0owQ== =26/E -----END PGP SIGNATURE----- Merge tag 'ext4_for_linus-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 updates from Ted Ts'o: "A lot of miscellaneous ext4 bug fixes and cleanups this cycle, most notably in the journaling code, bufered I/O, and compiler warning cleanups" * tag 'ext4_for_linus-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (33 commits) jbd2: Fix comment describing journal_init_common() ext4: prevent an infinite loop in the lazyinit thread ext4: use struct_size() to improve ext4_htree_store_dirent() ext4: annotate struct fname with __counted_by() jbd2: avoid dozens of -Wflex-array-member-not-at-end warnings ext4: use str_yes_no() helper function ext4: prevent delalloc to nodelalloc on remount jbd2: make b_frozen_data allocation always succeed ext4: cleanup variable name in ext4_fc_del() ext4: use string choices helpers jbd2: remove the 'success' parameter from the jbd2_do_replay() function jbd2: remove useless 'block_error' variable jbd2: factor out jbd2_do_replay() jbd2: refactor JBD2_COMMIT_BLOCK process in do_one_pass() jbd2: unified release of buffer_head in do_one_pass() jbd2: remove redundant judgments for check v1 checksum ext4: use ERR_CAST to return an error-valued pointer mm: zero range of eof folio exposed by inode size extension ext4: partial zero eof block on unaligned inode size extension ext4: disambiguate the return value of ext4_dio_write_end_io() ... |
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Linus Torvalds
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c6d64479d6 |
sanitize struct filename and lookup flags handling in statx
and friends Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQQqUNBr3gm4hGXdBJlZ7Krx/gZQ6wUCZzdpZQAKCRBZ7Krx/gZQ 6whMAQDhlGFV+nGRetwe4t60mVRpxIoc71GLC7b6V8FmyfTI5AEAkAigkJ8KCZDP mfGsN/3PtzoxnIkIqdk7Y7q4/fowyAw= =4DWZ -----END PGP SIGNATURE----- Merge tag 'pull-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull statx updates from Al Viro: "Sanitize struct filename and lookup flags handling in statx and friends" * tag 'pull-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: libfs: kill empty_dir_getattr() fs: Simplify getattr interface function checking AT_GETATTR_NOSEC flag fs/stat.c: switch to CLASS(fd_raw) kill getname_statx_lookup_flags() io_statx_prep(): use getname_uflags() |
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Linus Torvalds
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9fb2cfa463 |
ufs cleanups, fixes and folio conversion
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQQqUNBr3gm4hGXdBJlZ7Krx/gZQ6wUCZzdkpwAKCRBZ7Krx/gZQ 632xAP0WukRCsROhDX1LsNXY+SF3E6znsO8VwjjHTDwZ+dGW6gD/f+KooaGG5qBU 4Z7sVuOIpOOA0S1LLDx8XBYidcG23g8= =Aw1m -----END PGP SIGNATURE----- Merge tag 'pull-ufs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull ufs updates from Al Viro: "ufs cleanups, fixes and folio conversion" * tag 'pull-ufs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: ufs: ufs_sb_private_info: remove unused s_{2,3}apb fields ufs: Convert ufs_change_blocknr() to take a folio ufs: Pass a folio to ufs_new_fragments() ufs: Convert ufs_inode_getfrag() to take a folio ufs: Convert ufs_extend_tail() to take a folio ufs: Convert ufs_inode_getblock() to take a folio ufs: take the handling of free block counters into a helper clean ufs_trunc_direct() up a bit... ufs: get rid of ubh_{ubhcpymem,memcpyubh}() ufs_inode_getfrag(): remove junk comment ufs_free_fragments(): fix the braino in sanity check ufs_clusteracct(): switch to passing fragment number ufs: untangle ubh_...block...(), part 3 ufs: untangle ubh_...block...(), part 2 ufs: untangle ubh_...block...() macros, part 1 ufs: fix ufs_read_cylinder() failure handling ufs: missing ->splice_write() ufs: fix handling of delete_entry and set_link failures |
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Linus Torvalds
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82339c4911 |
sanitize xattr and io_uring interactions with it,
add *xattrat() syscalls, sanitize struct filename handling in there. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQQqUNBr3gm4hGXdBJlZ7Krx/gZQ6wUCZzdj4gAKCRBZ7Krx/gZQ 6/02AQC8ndn9i1wLGRb5DdZYGNWUDhXCdPrZCF2nyvU2swCIPwEAm1H5F/bxBXeT 6qCLHThVw4KTJOT2aDY03ELrxbi8Vg4= =35Oj -----END PGP SIGNATURE----- Merge tag 'pull-xattr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull xattr updates from Al Viro: "Sanitize xattr and io_uring interactions with it, add *xattrat() syscalls, sanitize struct filename handling in there" * tag 'pull-xattr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: xattr: remove redundant check on variable err fs/xattr: add *at family syscalls new helpers: file_removexattr(), filename_removexattr() new helpers: file_listxattr(), filename_listxattr() replace do_getxattr() with saner helpers. replace do_setxattr() with saner helpers. new helper: import_xattr_name() fs: rename struct xattr_ctx to kernel_xattr_ctx xattr: switch to CLASS(fd) io_[gs]etxattr_prep(): just use getname() io_uring: IORING_OP_F[GS]ETXATTR is fine with REQ_F_FIXED_FILE getname_maybe_null() - the third variant of pathname copy-in teach filename_lookup() to treat NULL filename as "" |
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Linus Torvalds
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0f25f0e4ef |
the bulk of struct fd memory safety stuff
Making sure that struct fd instances are destroyed in the same scope where they'd been created, getting rid of reassignments and passing them by reference, converting to CLASS(fd{,_pos,_raw}). We are getting very close to having the memory safety of that stuff trivial to verify. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQQqUNBr3gm4hGXdBJlZ7Krx/gZQ6wUCZzdikAAKCRBZ7Krx/gZQ 69nJAQCmbQHK3TGUbQhOw6MJXOK9ezpyEDN3FZb4jsu38vTIdgEA6OxAYDO2m2g9 CN18glYmD3wRyU6Bwl4vGODouSJvDgA= =gVH3 -----END PGP SIGNATURE----- Merge tag 'pull-fd' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull 'struct fd' class updates from Al Viro: "The bulk of struct fd memory safety stuff Making sure that struct fd instances are destroyed in the same scope where they'd been created, getting rid of reassignments and passing them by reference, converting to CLASS(fd{,_pos,_raw}). We are getting very close to having the memory safety of that stuff trivial to verify" * tag 'pull-fd' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (28 commits) deal with the last remaing boolean uses of fd_file() css_set_fork(): switch to CLASS(fd_raw, ...) memcg_write_event_control(): switch to CLASS(fd) assorted variants of irqfd setup: convert to CLASS(fd) do_pollfd(): convert to CLASS(fd) convert do_select() convert vfs_dedupe_file_range(). convert cifs_ioctl_copychunk() convert media_request_get_by_fd() convert spu_run(2) switch spufs_calls_{get,put}() to CLASS() use convert cachestat(2) convert do_preadv()/do_pwritev() fdget(), more trivial conversions fdget(), trivial conversions privcmd_ioeventfd_assign(): don't open-code eventfd_ctx_fdget() o2hb_region_dev_store(): avoid goto around fdget()/fdput() introduce "fd_pos" class, convert fdget_pos() users to it. fdget_raw() users: switch to CLASS(fd_raw) convert vmsplice() to CLASS(fd) ... |
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Linus Torvalds
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23acd17754 |
vfs-6.13.ecryptfs
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZzcmVQAKCRCRxhvAZXjc ogE8AP9fT1T0rkYHT2ym2ulnQ2oARqO5VOnGmzYiTs2oHAfn4wD9GwH1nkMvlNTY l7zalIg2AIdN6qvTATSoD3sN+fJXXgU= =RNSE -----END PGP SIGNATURE----- Merge tag 'vfs-6.13.ecryptfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull ecryptfs updates from Christian Brauner: "The folio project is about to remove page->index. This contains the work required for ecryptfs" * tag 'vfs-6.13.ecryptfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: ecryptfs: Pass the folio index to crypt_extent() ecryptfs: Convert lower_offset_for_page() to take a folio ecryptfs: Convert ecryptfs_decrypt_page() to take a folio ecryptfs: Convert ecryptfs_encrypt_page() to take a folio ecryptfs: Convert ecryptfs_write_lower_page_segment() to take a folio ecryptfs: Convert ecryptfs_write() to use a folio ecryptfs: Convert ecryptfs_read_lower_page_segment() to take a folio ecryptfs: Convert ecryptfs_copy_up_encrypted_with_header() to take a folio ecryptfs: Use a folio throughout ecryptfs_read_folio() ecryptfs: Convert ecryptfs_writepage() to ecryptfs_writepages() |
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Linus Torvalds
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241c7ed4d4 |
vfs-6.13.untorn.writes
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZzcopwAKCRCRxhvAZXjc oitWAQD68PGFI6/ES9x+qGsDFEZBH08icuO+a9dyaZXyNRosDgD/ex2zHj6F7IzS Ghgb9jiqWQ8l2+PDYfisxa/0jiqCbAk= =DmXf -----END PGP SIGNATURE----- Merge tag 'vfs-6.13.untorn.writes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs untorn write support from Christian Brauner: "An atomic write is a write issed with torn-write protection. This means for a power failure or any hardware failure all or none of the data from the write will be stored, never a mix of old and new data. This work is already supported for block devices. If a block device is opened with O_DIRECT and the block device supports atomic write, then FMODE_CAN_ATOMIC_WRITE is added to the file of the opened block device. This contains the work to expand atomic write support to filesystems, specifically ext4 and XFS. Currently, only support for writing exactly one filesystem block atomically is added. Since it's now possible to have filesystem block size > page size for XFS, it's possible to write 4K+ blocks atomically on x86" * tag 'vfs-6.13.untorn.writes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: iomap: drop an obsolete comment in iomap_dio_bio_iter ext4: Do not fallback to buffered-io for DIO atomic write ext4: Support setting FMODE_CAN_ATOMIC_WRITE ext4: Check for atomic writes support in write iter ext4: Add statx support for atomic writes xfs: Support setting FMODE_CAN_ATOMIC_WRITE xfs: Validate atomic writes xfs: Support atomic write for statx fs: iomap: Atomic write support fs: Export generic_atomic_write_valid() block: Add bdev atomic write limits helpers fs/block: Check for IOCB_DIRECT in generic_atomic_write_valid() block/fs: Pass an iocb to generic_atomic_write_valid() |
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Linus Torvalds
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7956186e75 |
vfs-6.13.tmpfs
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZzcZIgAKCRCRxhvAZXjc oge4AQDxhsKW+v/jKHydzqzwG3Ks7DIxrUg/mcGfdtBwjiWgvwEA8t0QAAfKECAK B0+bNKJ8XJRUtZ10Jgm3dzURbEhBWgU= =4Lui -----END PGP SIGNATURE----- Merge tag 'vfs-6.13.tmpfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull tmpfs case folding updates from Christian Brauner: "This adds case-insensitive support for tmpfs. The work contained in here adds support for case-insensitive file names lookups in tmpfs. The main difference from other casefold filesystems is that tmpfs has no information on disk, just on RAM, so we can't use mkfs to create a case-insensitive tmpfs. For this implementation, there's a mount option for casefolding. The rest of the patchset follows a similar approach as ext4 and f2fs. The use case for this feature is similar to the use case for ext4, to better support compatibility layers (like Wine), particularly in combination with sandboxing/container tools (like Flatpak). Those containerization tools can share a subset of the host filesystem with an application. In the container, the root directory and any parent directories required for a shared directory are on tmpfs, with the shared directories bind-mounted into the container's view of the filesystem. If the host filesystem is using case-insensitive directories, then the application can do lookups inside those directories in a case-insensitive way, without this needing to be implemented in user-space. However, if the host is only sharing a subset of a case-insensitive directory with the application, then the parent directories of the mount point will be part of the container's root tmpfs. When the application tries to do case-insensitive lookups of those parent directories on a case-sensitive tmpfs, the lookup will fail" * tag 'vfs-6.13.tmpfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: tmpfs: Initialize sysfs during tmpfs init tmpfs: Fix type for sysfs' casefold attribute libfs: Fix kernel-doc warning in generic_ci_validate_strict_name docs: tmpfs: Add casefold options tmpfs: Expose filesystem features via sysfs tmpfs: Add flag FS_CASEFOLD_FL support for tmpfs dirs tmpfs: Add casefold lookup support libfs: Export generic_ci_ dentry functions unicode: Recreate utf8_parse_version() unicode: Export latest available UTF-8 version number ext4: Use generic_ci_validate_strict_name helper libfs: Create the helper function generic_ci_validate_strict_name() |
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Linus Torvalds
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a5ca574796 |
vfs-6.13.usercopy
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZzchMwAKCRCRxhvAZXjc okICAP4h6tDl7dgTv8GkL0tgaHi/36m+ilctXbEtIe9fbkc/fQD8D5t6jYaz47gu zVY7qOrtQOQ/diNavzxyky99Uh3dKgo= =lwkw -----END PGP SIGNATURE----- Merge tag 'vfs-6.13.usercopy' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull copy_struct_to_user helper from Christian Brauner: "This adds a copy_struct_to_user() helper which is a companion helper to the already widely used copy_struct_from_user(). It copies a struct from kernel space to userspace, in a way that guarantees backwards-compatibility for struct syscall arguments as long as future struct extensions are made such that all new fields are appended to the old struct, and zeroed-out new fields have the same meaning as the old struct. The first user is sched_getattr() system call but the new extensible pidfs ioctl will be ported to it as well" * tag 'vfs-6.13.usercopy' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: sched_getattr: port to copy_struct_to_user uaccess: add copy_struct_to_user helper |
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Linus Torvalds
|
909d3b571e |
vfs-6.13.pidfs
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZzcg9wAKCRCRxhvAZXjc ou7GAQDtQ75C+DFjrL4alXjYG7uly0BWgrlRJ4SgNu1I0uUYdgD/UHH2fAkQeKGy xTGT4z0abiELZw9RQ7F6qbiBhA0nIw8= =Plww -----END PGP SIGNATURE----- Merge tag 'vfs-6.13.pidfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull pidfs update from Christian Brauner: "This adds a new ioctl to retrieve information about a pidfd. A common pattern when using pidfds is having to get information about the process, which currently requires /proc being mounted, resolving the fd to a pid, and then do manual string parsing of /proc/N/status and friends. This needs to be reimplemented over and over in all userspace projects (e.g.: it has been reimplemented in systemd, dbus, dbus-daemon, polkit so far), and requires additional care in checking that the fd is still valid after having parsed the data, to avoid races. Having a programmatic API that can be used directly removes all these requirements, including having /proc mounted. As discussed at LPC24, add an ioctl with an extensible struct so that more parameters can be added later if needed. Start with returning pid/tgid/ppid and some creds unconditionally, and cgroupid optionally" * tag 'vfs-6.13.pidfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: pidfd: add ioctl to retrieve pid info |
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Linus Torvalds
|
a29835c9d0 |
vfs-6.13.ovl
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZzcXJQAKCRCRxhvAZXjc opmaAQDuEpUXi3PSNwgXGRYAzeBpsonoNrBtzSRTlaza7KZCiAEAsFUSbQJNGdkN TqC9KvI1EiX2hVvWmVBVttBNH6CY+wY= =4le5 -----END PGP SIGNATURE----- Merge tag 'vfs-6.13.ovl' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull overlayfs updates from Christian Brauner: "Make overlayfs support specifying layers through file descriptors. Currently overlayfs only allows specifying layers through path names. This is inconvenient for users that want to assemble an overlayfs mount purely based on file descriptors: This enables user to specify both: fsconfig(fd_overlay, FSCONFIG_SET_FD, "upperdir+", NULL, fd_upper); fsconfig(fd_overlay, FSCONFIG_SET_FD, "workdir+", NULL, fd_work); fsconfig(fd_overlay, FSCONFIG_SET_FD, "lowerdir+", NULL, fd_lower1); fsconfig(fd_overlay, FSCONFIG_SET_FD, "lowerdir+", NULL, fd_lower2); in addition to: fsconfig(fd_overlay, FSCONFIG_SET_STRING, "upperdir+", "/upper", 0); fsconfig(fd_overlay, FSCONFIG_SET_STRING, "workdir+", "/work", 0); fsconfig(fd_overlay, FSCONFIG_SET_STRING, "lowerdir+", "/lower1", 0); fsconfig(fd_overlay, FSCONFIG_SET_STRING, "lowerdir+", "/lower2", 0); There's also a large set of new overlayfs selftests to test new features and some older properties" * tag 'vfs-6.13.ovl' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: selftests: add test for specifying 500 lower layers selftests: add overlayfs fd mounting selftests selftests: use shared header Documentation,ovl: document new file descriptor based layers ovl: specify layers via file descriptors fs: add helper to use mount option as path or fd |
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Linus Torvalds
|
4c797b11a8 |
vfs-6.13.file
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZzcW4gAKCRCRxhvAZXjc okF+AP9xTMb2SlnRPBOBd9yFcmVXmQi86TSCUPAEVb+wIldGYwD/RIOdvXYJlp9v RgJkU1DC3ddkXtONNDY6gFaP+siIWA0= =gMc7 -----END PGP SIGNATURE----- Merge tag 'vfs-6.13.file' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs file updates from Christian Brauner: "This contains changes the changes for files for this cycle: - Introduce a new reference counting mechanism for files. As atomic_inc_not_zero() is implemented with a try_cmpxchg() loop it has O(N^2) behaviour under contention with N concurrent operations and it is in a hot path in __fget_files_rcu(). The rcuref infrastructures remedies this problem by using an unconditional increment relying on safe- and dead zones to make this work and requiring rcu protection for the data structure in question. This not just scales better it also introduces overflow protection. However, in contrast to generic rcuref, files require a memory barrier and thus cannot rely on *_relaxed() atomic operations and also require to be built on atomic_long_t as having massive amounts of reference isn't unheard of even if it is just an attack. This adds a file specific variant instead of making this a generic library. This has been tested by various people and it gives consistent improvement up to 3-5% on workloads with loads of threads. - Add a fastpath for find_next_zero_bit(). Skip 2-levels searching via find_next_zero_bit() when there is a free slot in the word that contains the next fd. This improves pts/blogbench-1.1.0 read by 8% and write by 4% on Intel ICX 160. - Conditionally clear full_fds_bits since it's very likely that a bit in full_fds_bits has been cleared during __clear_open_fds(). This improves pts/blogbench-1.1.0 read up to 13%, and write up to 5% on Intel ICX 160. - Get rid of all lookup_*_fdget_rcu() variants. They were used to lookup files without taking a reference count. That became invalid once files were switched to SLAB_TYPESAFE_BY_RCU and now we're always taking a reference count. Switch to an already existing helper and remove the legacy variants. - Remove pointless includes of <linux/fdtable.h>. - Avoid cmpxchg() in close_files() as nobody else has a reference to the files_struct at that point. - Move close_range() into fs/file.c and fold __close_range() into it. - Cleanup calling conventions of alloc_fdtable() and expand_files(). - Merge __{set,clear}_close_on_exec() into one. - Make __set_open_fd() set cloexec as well instead of doing it in two separate steps" * tag 'vfs-6.13.file' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: selftests: add file SLAB_TYPESAFE_BY_RCU recycling stressor fs: port files to file_ref fs: add file_ref expand_files(): simplify calling conventions make __set_open_fd() set cloexec state as well fs: protect backing files with rcu file.c: merge __{set,clear}_close_on_exec() alloc_fdtable(): change calling conventions. fs/file.c: add fast path in find_next_fd() fs/file.c: conditionally clear full_fds fs/file.c: remove sanity_check and add likely/unlikely in alloc_fd() move close_range(2) into fs/file.c, fold __close_range() into it close_files(): don't bother with xchg() remove pointless includes of <linux/fdtable.h> get rid of ...lookup...fdget_rcu() family |
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Linus Torvalds
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8dcf44fcad |
vfs-6.13.netfs
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZzcUoQAKCRCRxhvAZXjc omxAAP9WE8zSxeu7Foa6+OmLO62mYdB8rRrQ4OjzX+zunL0UnAD9FAHPsB4amWm4 /zK3Nf7ipijop5+RgSJTgURffASKOgI= =ifkk -----END PGP SIGNATURE----- Merge tag 'vfs-6.13.netfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull netfs updates from Christian Brauner: "Various fixes for the netfs library and related infrastructure: cachefiles: - Fix a dentry leak in cachefiles_open_file() - Fix incorrect length return value in cachefiles_ondemand_fd_write_iter() - Fix missing pos updates in cachefiles_ondemand_fd_write_iter() - Clean up in cachefiles_commit_tmpfile() - Fix NULL pointer dereference in object->file - Add a memory barrier for FSCACHE_VOLUME_CREATING netfs: - Remove call to folio_index() - Fix a few minor bugs in netfs_page_mkwrite() - Remove unnecessary references to pages" * tag 'vfs-6.13.netfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING cachefiles: Fix NULL pointer dereference in object->file cachefiles: Clean up in cachefiles_commit_tmpfile() cachefiles: Fix missing pos updates in cachefiles_ondemand_fd_write_iter() cachefiles: Fix incorrect length return value in cachefiles_ondemand_fd_write_iter() netfs: Remove unnecessary references to pages netfs: Fix a few minor bugs in netfs_page_mkwrite() netfs: Remove call to folio_index() |
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Linus Torvalds
|
56be9aaf98 |
vfs-6.13.pagecache
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZzcUQAAKCRCRxhvAZXjc onEpAQCUdwIBHpwmSIFvJFA9aNGpbLzi0dDSEIxuWYtp5qVuogD+ImccwqpG3kEi Zq9vokdPpB1zbahxKl1mkvBG4G0GFQE= =LbP6 -----END PGP SIGNATURE----- Merge tag 'vfs-6.13.pagecache' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs pagecache updates from Christian Brauner: "Cleanup filesystem page flag usage: This continues the work to make the mappedtodisk/owner_2 flag available to filesystems which don't use buffer heads. Further patches remove uses of Private2. This brings us very close to being rid of it entirely" * tag 'vfs-6.13.pagecache' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: migrate: Remove references to Private2 ceph: Remove call to PagePrivate2() btrfs: Switch from using the private_2 flag to owner_2 mm: Remove PageMappedToDisk nilfs2: Convert nilfs_copy_buffer() to use folios fs: Move clearing of mappedtodisk to buffer.c |
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Linus Torvalds
|
5bb6ba448f |
vfs-6.13.rust.file
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZzcT8AAKCRCRxhvAZXjc or+CAQDb2JkNOVrugXw++kgvHrLBY+7rCzyA+sJhiZu7C7uQogEApQgGP1kjmpi0 f1wR6xomb9AmQNd991F0VWXCPBTUsAk= =RQnY -----END PGP SIGNATURE----- Merge tag 'vfs-6.13.rust.file' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs rust file abstractions from Christian Brauner: "This contains the file abstractions needed by the Rust implementation of the Binder driver and other parts of the kernel. Let's treat this as a first attempt at getting something working but I do expect the actual interfaces to change significantly over time. Simply because we are still figuring out what actually works. But there's no point in further theorizing. Let's see how it holds up with actual users" * tag 'vfs-6.13.rust.file' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: rust: task: adjust safety comments in Task methods rust: add seqfile abstraction rust: file: add abstraction for `poll_table` rust: file: add `Kuid` wrapper rust: file: add `FileDescriptorReservation` rust: security: add abstraction for secctx rust: cred: add Rust abstraction for `struct cred` rust: file: add Rust abstraction for `struct file` rust: task: add `Task::current_raw` rust: types: add `NotThreadSafe` |
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Linus Torvalds
|
70e7730c2a |
vfs-6.13.misc
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZzcToAAKCRCRxhvAZXjc osL9AP948FFumJRC28gDJ4xp+X4eohNOfkgoEG8FTbF2zU6ulwD+O0pr26FqpFli pqlG+38UdATImpfqqWjPbb72sBYcfQg= =wLUh -----END PGP SIGNATURE----- Merge tag 'vfs-6.13.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull misc vfs updates from Christian Brauner: "Features: - Fixup and improve NLM and kNFSD file lock callbacks Last year both GFS2 and OCFS2 had some work done to make their locking more robust when exported over NFS. Unfortunately, part of that work caused both NLM (for NFS v3 exports) and kNFSD (for NFSv4.1+ exports) to no longer send lock notifications to clients This in itself is not a huge problem because most NFS clients will still poll the server in order to acquire a conflicted lock It's important for NLM and kNFSD that they do not block their kernel threads inside filesystem's file_lock implementations because that can produce deadlocks. We used to make sure of this by only trusting that posix_lock_file() can correctly handle blocking lock calls asynchronously, so the lock managers would only setup their file_lock requests for async callbacks if the filesystem did not define its own lock() file operation However, when GFS2 and OCFS2 grew the capability to correctly handle blocking lock requests asynchronously, they started signalling this behavior with EXPORT_OP_ASYNC_LOCK, and the check for also trusting posix_lock_file() was inadvertently dropped, so now most filesystems no longer produce lock notifications when exported over NFS Fix this by using an fop_flag which greatly simplifies the problem and grooms the way for future uses by both filesystems and lock managers alike - Add a sysctl to delete the dentry when a file is removed instead of making it a negative dentry Commit |
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Linus Torvalds
|
4eb98b7760 |
vfs-6.13.mount.api
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZzcTJQAKCRCRxhvAZXjc orndAP4gmY0BHtvXZoZiArqjvFIn5lELcRCPoXzYTlVlb2IQFQD9Gi3kMv5QUZBj bKCKNJb1MaXknT/psytR9llWlDTMeQw= =0/q1 -----END PGP SIGNATURE----- Merge tag 'vfs-6.13.mount.api' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs mount api conversions from Christian Brauner: "Convert adfs, affs, befs, hfs, hfsplus, jfs, and hpfs to the new mount api" * tag 'vfs-6.13.mount.api' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: efs: fix the efs new mount api implementation ubifs: Convert ubifs to use the new mount API hpfs: convert hpfs to use the new mount api jfs: convert jfs to use the new mount api hfsplus: convert hfsplus to use the new mount api hfs: convert hfs to use the new mount api befs: convert befs to use the new mount api affs: convert affs to use the new mount api adfs: convert adfs to use the new mount api |
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Linus Torvalds
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6ac81fd55e |
vfs-6.13.mgtime
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZzcScQAKCRCRxhvAZXjc oj+5AP4k822a77wc/3iPFk379naIvQ4dsrgemh0/Pb6ZvzvkFQEAi3vFCfzCDR2x SkJF/RwXXKZv6U31QXMRt2Qo6wfBuAc= =nVlm -----END PGP SIGNATURE----- Merge tag 'vfs-6.13.mgtime' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs multigrain timestamps from Christian Brauner: "This is another try at implementing multigrain timestamps. This time with significant help from the timekeeping maintainers to reduce the performance impact. Thomas provided a base branch that contains the required timekeeping interfaces for the VFS. It serves as the base for the multi-grain timestamp work: - Multigrain timestamps allow the kernel to use fine-grained timestamps when an inode's attributes is being actively observed via ->getattr(). With this support, it's possible for a file to get a fine-grained timestamp, and another modified after it to get a coarse-grained stamp that is earlier than the fine-grained time. If this happens then the files can appear to have been modified in reverse order, which breaks VFS ordering guarantees. To prevent this, a floor value is maintained for multigrain timestamps. Whenever a fine-grained timestamp is handed out, record it, and when later coarse-grained stamps are handed out, ensure they are not earlier than that value. If the coarse-grained timestamp is earlier than the fine-grained floor, return the floor value instead. The timekeeper changes add a static singleton atomic64_t into timekeeper.c that is used to keep track of the latest fine-grained time ever handed out. This is tracked as a monotonic ktime_t value to ensure that it isn't affected by clock jumps. Because it is updated at different times than the rest of the timekeeper object, the floor value is managed independently of the timekeeper via a cmpxchg() operation, and sits on its own cacheline. Two new public timekeeper interfaces are added: (1) ktime_get_coarse_real_ts64_mg() fills a timespec64 with the later of the coarse-grained clock and the floor time (2) ktime_get_real_ts64_mg() gets the fine-grained clock value, and tries to swap it into the floor. A timespec64 is filled with the result. - The VFS has always used coarse-grained timestamps when updating the ctime and mtime after a change. This has the benefit of allowing filesystems to optimize away a lot metadata updates, down to around 1 per jiffy, even when a file is under heavy writes. Unfortunately, this has always been an issue when we're exporting via NFSv3, which relies on timestamps to validate caches. A lot of changes can happen in a jiffy, so timestamps aren't sufficient to help the client decide when to invalidate the cache. Even with NFSv4, a lot of exported filesystems don't properly support a change attribute and are subject to the same problems with timestamp granularity. Other applications have similar issues with timestamps (e.g backup applications). If we were to always use fine-grained timestamps, that would improve the situation, but that becomes rather expensive, as the underlying filesystem would have to log a lot more metadata updates. This adds a way to only use fine-grained timestamps when they are being actively queried. Use the (unused) top bit in inode->i_ctime_nsec as a flag that indicates whether the current timestamps have been queried via stat() or the like. When it's set, we allow the kernel to use a fine-grained timestamp iff it's necessary to make the ctime show a different value. This solves the problem of being able to distinguish the timestamp between updates, but introduces a new problem: it's now possible for a file being changed to get a fine-grained timestamp. A file that is altered just a bit later can then get a coarse-grained one that appears older than the earlier fine-grained time. This violates timestamp ordering guarantees. This is where the earlier mentioned timkeeping interfaces help. A global monotonic atomic64_t value is kept that acts as a timestamp floor. When we go to stamp a file, we first get the latter of the current floor value and the current coarse-grained time. If the inode ctime hasn't been queried then we just attempt to stamp it with that value. If it has been queried, then first see whether the current coarse time is later than the existing ctime. If it is, then we accept that value. If it isn't, then we get a fine-grained time and try to swap that into the global floor. Whether that succeeds or fails, we take the resulting floor time, convert it to realtime and try to swap that into the ctime. We take the result of the ctime swap whether it succeeds or fails, since either is just as valid. Filesystems can opt into this by setting the FS_MGTIME fstype flag. Others should be unaffected (other than being subject to the same floor value as multigrain filesystems)" * tag 'vfs-6.13.mgtime' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: fs: reduce pointer chasing in is_mgtime() test tmpfs: add support for multigrain timestamps btrfs: convert to multigrain timestamps ext4: switch to multigrain timestamps xfs: switch to multigrain timestamps Documentation: add a new file documenting multigrain timestamps fs: add percpu counters for significant multigrain timestamp events fs: tracepoints around multigrain timestamp events fs: handle delegated timestamps in setattr_copy_mgtime timekeeping: Add percpu counter for tracking floor swap events timekeeping: Add interfaces for handling timestamps with a floor value fs: have setattr_copy handle multigrain timestamps appropriately fs: add infrastructure for multigrain timestamps |
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Linus Torvalds
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adc218676e | Linux 6.12 | ||
Linus Torvalds
|
f66d6acccb |
- Make sure a kdump kernel with CONFIG_IMA_KEXEC enabled and booted on an AMD
SME enabled hardware properly decrypts the ima_kexec buffer information passed to it from the previous kernel - Fix building the kernel with Clang where a non-TLS definition of the stack protector guard cookie leads to bogus code generation - Clear a wrongly advertised virtualized VMLOAD/VMSAVE feature flag on some Zen4 client systems as those insns are not supported on client -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmc54zkACgkQEsHwGGHe VUplzw//d1ysRrT+YNFwQrvGUc6mjP3dtOo2NCBxKhgvC2OKzDlj8ZIx20Yn97At pboOPbewV+cCSd7PXo9ymNsJMjFD0NAyKasRaHhUEGU6/AvQ2EwwN7d6q444HFso eIFLak17zha1VhSyu0ozZJSWjUbebwBcI2I3Re5VzJXGzBybw2nLM/PPQn94tsAQ w6ag0Ol+VbIPd/EdMOcRI1VXeFl44V5kiAYNvCunBvpTae9i/pC/k7iHW6tWDJUu Ud0hpIsq/Rn9Bj2oG/ovz1CvlcEryhL23HpQFyj/C1Gwl3fjpSqWUDm8U366VIVV I0EFSpYpH7CD9ArL37R6ziaCH1yojMcrXZSu1kjtc9rPFoqmcxOBkW0dVidWwKv4 3hFVrWMkFm/qMW+SPss7ZX48z87bnAwplQpgF/sFBeHJSXr909ne3nOdPAS8Hp4t 5VMGQkXWQCWGgRNxAqpU8pZaPKsvuFvJIJg6B6JcDe/qSv3i78geg64lT2WNhs2m AGH/E+ERF3X5jaPn/2oRXc6o9Kfmoy0+QLE4UvLVGunhE8ZNK0Zg3097Dn7N1flR ayhAt6otgeksiRpskfCtnxlfZoWIwnS0ueVkb0qJDS+1PWlMkk48cvxwpikEn6rD ebCllm8dBysnxgyf+Mf2rKsDbsnrICT7olPr1MTuEUHwf6Uqs5Q= =5i7R -----END PGP SIGNATURE----- Merge tag 'x86_urgent_for_v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Borislav Petkov: - Make sure a kdump kernel with CONFIG_IMA_KEXEC enabled and booted on an AMD SME enabled hardware properly decrypts the ima_kexec buffer information passed to it from the previous kernel - Fix building the kernel with Clang where a non-TLS definition of the stack protector guard cookie leads to bogus code generation - Clear a wrongly advertised virtualized VMLOAD/VMSAVE feature flag on some Zen4 client systems as those insns are not supported on client * tag 'x86_urgent_for_v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm: Fix a kdump kernel failure on SME system when CONFIG_IMA_KEXEC=y x86/stackprotector: Work around strict Clang TLS symbol requirements x86/CPU/AMD: Clear virtualized VMLOAD/VMSAVE on Zen4 client |
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Linus Torvalds
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4a5df37964 |
10 hotfixes, 7 of which are cc:stable. All singletons, please see the
changelogs for details. -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZzkr6AAKCRDdBJ7gKXxA jsb2AP9HCOI4w9rQTmBdnaefXytS7fiiPq+LVNpjJ0NGXX2FSgD/e1NM0wi8KevQ npcvlqTcXtRSJvYNF904aTNyDn+Kuw0= =KFGY -----END PGP SIGNATURE----- Merge tag 'mm-hotfixes-stable-2024-11-16-15-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull hotfixes from Andrew Morton: "10 hotfixes, 7 of which are cc:stable. All singletons, please see the changelogs for details" * tag 'mm-hotfixes-stable-2024-11-16-15-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: mm: revert "mm: shmem: fix data-race in shmem_getattr()" ocfs2: uncache inode which has failed entering the group mm: fix NULL pointer dereference in alloc_pages_bulk_noprof mm, doc: update read_ahead_kb for MADV_HUGEPAGE fs/proc/task_mmu: prevent integer overflow in pagemap_scan_get_args() sched/task_stack: fix object_is_on_stack() for KASAN tagged pointers crash, powerpc: default to CRASH_DUMP=n on PPC_BOOK3S_32 mm/mremap: fix address wraparound in move_page_tables() tools/mm: fix compile error mm, swap: fix allocation and scanning race with swapoff |
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Andrew Morton
|
d1aa0c0429 |
mm: revert "mm: shmem: fix data-race in shmem_getattr()"
Revert |
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Linus Torvalds
|
b84eeed05a |
ARM fixes for v6.12
- Fix kernel mapping for XIP kernels - Fix SMP support for XIP kernels - Fix complication corner case with CFI - Fix a typo in nommu code - Fix cacheflush syscall when PAN is enabled on LPAE platforms -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEuNNh8scc2k/wOAE+9OeQG+StrGQFAmc5F/UACgkQ9OeQG+St rGQBRg/+P9YMx0MZTV8y5B92yAzOk28QW303f8PWzoTXMiQ1nhMFUhk/TFMaeSxs 6CJfQ+W5S+N9X1hG8XAlBPZruX5GWKXScS1By4J/sBwTXmIomnkeL6SwQRULF63v C/dcFWd9avKo2XnZIhQ8mduczR17MoagXxq6kpLvgaLJ6C/b6XJQ+SwqtuGXuJtz NpPrU0hSLOZdfGHQC6jyIhWObgNEX+Li8EZorynOAYiy90sYUgpffAsL/qWUV+cM VF/cK+BYkvShxChj6rvcv7vlbGBUaV2DhRIdXe4AxD2hkX3cUmLG+10YQ7pq/gb0 722w7ZsBRXXFnlKle3vPzf4upWdMJEQ1SM3z6nYcZ8JTK9rGIxvAlt4PhFc6iw/v 2AF3WSXhbdRg1+6kK5Q/fsga40BtXbL/3pS/5Q57MZfrmF/0PYVdFRvKJQuRVvxC +FiWTDKuR7yTSK9/5hx+2W6WDjuDvoFeMBo4n9GyqdajIpi13dUminE/KdCTuz57 OefDS7SGfUlnWj6JAUbF+hg0/Loij5KldZbmQDWLeU2/LTx3UMUMNZ6RLATQ33tT +aMnrxwEd2qPXNhlC/hAz/PR5tt14w2jlEK+1x4S5siW6vi4+8F6KfcycZFzkVHI gqRNhG//mmpnCzK7FU5q0Od0GrM1zpYhhnAXm92QPP4zJp1R0s8= =yhjm -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux Pull ARM fixes from Russell King: - Fix kernel mapping for XIP kernels - Fix SMP support for XIP kernels - Fix complication corner case with CFI - Fix a typo in nommu code - Fix cacheflush syscall when PAN is enabled on LPAE platforms * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux: ARM: fix cacheflush with PAN ARM: 9435/1: ARM/nommu: Fix typo "absence" ARM: 9434/1: cfi: Fix compilation corner case ARM: 9420/1: smp: Fix SMP for xip kernels ARM: 9419/1: mm: Fix kernel memory mapping for xip kernels |
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Linus Torvalds
|
e06bc45bef |
drm/amdgpu regression fix for 6.12-rc8
amdgpu: - revert patch to fix swsmu regression -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmc5GYcACgkQDHTzWXnE hr4YmQ//elGWAiHa8X126Mx74bALJMcAApzfLclVguyqSuNGvTiGqMnc0eM2c/JA InhVUzH+OZfrVA0/XJCrrsVa6urRGW9vDGUZlWwwSdWagJ0bKtYRMX0++ptIplwJ eDWMludS1vwfDlwFNpt4egkLAc69hJRUWIejL1bQP5SN9BfluCAlRz8Pe4L9ROER uzQzPr02cgR2jbGHbZ6Z5A+1Jz01Q3CVcn6HFqIOUbEkH9rZotIlyIH9OnX3w0DL JEckIFIs9nTRCvfyJpLtPkCZW0MEFFO0xxIB1saSTpHcZjPdZ7EUxAvVcBo+mg+5 ezteYl/LWh1nWJYvScGn4fQ7P7Otv910oucChU5f0XjzzgJIhYdS8qTuFiByUgKs 8r+EqSUtF/zqzy/pvYDIxeBzkQYITRji4UtTx1TGD3rUH5gYMWvOpjzpt0IneXIv m0Diq5+2ZLQGXT4wsvbB4swqNY9lmAktD66dGTPNKG5UrMKXzWMaehpdA5lrF13e 2MXpFNhxi6LZK5+urdAQn8OTjmmxijI7B73nfPQwpHpIC8ObMi0IqMNM8sr1LLBr opu6692z9C3zIfxvJDJsAbe/O89i+DOVVr1TCRxPGucqxs2UwGlBMp0LzrJ13kBi gqMdRS0lQW17w0ntuBqH224QiXfAayLstMTY1o76tzV2aaTVDuo= =gFiR -----END PGP SIGNATURE----- Merge tag 'drm-fixes-2024-11-17' of https://gitlab.freedesktop.org/drm/kernel Pull drm fix from Dave Airlie: "Alex sent on a last minute revert for a amdgpu/swsmu regression: - revert patch to fix swsmu regression" * tag 'drm-fixes-2024-11-17' of https://gitlab.freedesktop.org/drm/kernel: Revert "drm/amd/pm: correct the workload setting" |
||
Dave Airlie
|
f48ab0a39f |
amd-drm-fixes-6.12-2024-11-16:
amdgpu: - Revert a swsmu patch to fix a regression -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQQgO5Idg2tXNTSZAr293/aFa7yZ2AUCZzivywAKCRC93/aFa7yZ 2DjYAQD507C9yHfjLWMrpqQIQsnMK5XRobiq8Fdqcu6iDkS8aQEAjM6a7pCIkjpE Q3vlFgcJcEGUrynDL7T+jVOIXLn8FAM= =bM6j -----END PGP SIGNATURE----- Merge tag 'amd-drm-fixes-6.12-2024-11-16' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes amd-drm-fixes-6.12-2024-11-16: amdgpu: - Revert a swsmu patch to fix a regression Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241116145320.2507156-1-alexander.deucher@amd.com |
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Linus Torvalds
|
b5a24181e4 |
Ring buffer fixes for 6.12:
- Revert: "ring-buffer: Do not have boot mapped buffers hook to CPU hotplug" A crash that happened on cpu hotplug was actually caused by the incorrect ref counting that was fixed by commit |
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Alex Deucher
|
44f392fbf6 |
Revert "drm/amd/pm: correct the workload setting"
This reverts commit |
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Linus Torvalds
|
e8bdb3c8be |
A Single RISC-V Fix for 6.12-rc8
* A fix for the CPU perf driver that avoids leaking CPU ID references on systems without snapshot support. -----BEGIN PGP SIGNATURE----- iQJHBAABCAAxFiEEKzw3R0RoQ7JKlDp6LhMZ81+7GIkFAmc3avsTHHBhbG1lckBk YWJiZWx0LmNvbQAKCRAuExnzX7sYiZUOD/44STXrS9mFLeBsizeEB8pX7GKoJ2FT Tcctcm4Or2sFeS22WNljtxHH8ozMPrhd++GogAJ91yO46WUzmjJ01skIKZFHkB+S VNFqwzJ+rm5l2NNCyhzO+xLxVrwWPWqY3E1rK5ta3UpaEqkBOOgW8zNHvvppOA9d tU/7yFVF/O8wZ8cXakGQCMNe4bZc8ZOM+rUTpBZLb3fne+BvUr+uanNkB9Py8Nl5 PBD1OhFCg9M4wZ5MCw3yFS2/D2LCSGHVOYI8H71wcZvcqOA0qGll+LSVugMh4ZWN HX81lx8XY+nC8xz3OvwjnPZvQwyW/HU8jq+EaJEycH3axAscdZmXsi8pWGn8H0Ho WKeJbbNnmm9pfxJvhqdic0ghmAaX3uHWQLd+MriQjMbsOcA0+5XMHuEfaZuLDZ2o dZa9uvqdXIchHr1vg/gxrZvJueMfaChCuWMt+sEmQ4C+YlWBo1TMXKxHzVzb27nJ EdsAsxKRzzzUkaOdXL5LNTjlO5Xtt7BzF4k5g2GuwyYACPqbQZpzQUJLfPf+0ZgR s34eQSWeyuxxZMzK224hZDemQcX5bSXBR7nRo+aLsyJq75SJ5NBd4BsW2Ei6GN/P WItbkly3uAa/MrDv7X/Jj+ZVZVTRzk7y3mmZZLkORoAtJab8/0tNaLULk/p8X6qH zGyh6UY8C0DHZg== =nXVF -----END PGP SIGNATURE----- Merge tag 'riscv-for-linus-6.12-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V fix from Palmer Dabbelt: - A fix for the CPU perf driver that avoids leaking CPU ID references on systems without snapshot support. * tag 'riscv-for-linus-6.12-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: drivers: perf: Fix wrong put_cpu() placement |
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Jens Axboe
|
88d47f6293 |
Merge tag 'md-6.13-20241115' of https://git.kernel.org/pub/scm/linux/kernel/git/mdraid/linux into for-6.13/block
Pull MD fixes from Song: "This set contains a fix for a W=1 warning, by John Garry, and a MAINTAINERS update." * tag 'md-6.13-20241115' of https://git.kernel.org/pub/scm/linux/kernel/git/mdraid/linux: MAINTAINERS: Update git tree for mdraid subsystem md/raid5: Increase r5conf.cache_name size |
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Linus Torvalds
|
f868cd2517 |
drm fixes for 6.12-rc8
amdgpu: - PSR fix - Panel replay fixes - DML fix - vblank power fix - Fix video caps - SMU 14.0 fix - GPUVM fix - MES 12 fix - APU carve out fix - DC vbios fix - NBIO fix i915: - Don't load GSC on ARL-H and ARL-U if too old FW - Avoid potential OOPS in enabling/disabling TV output xe: - Fix unlock on exec ioctl error path - Fix hibernation on LNL due to ggtt getting lost - Fix missing runtime PM in OA release bridge: - tc358768: Fix DSI command tx nouveau: - Fix GSP AUX error handling - dp: Handle retires for AUX CH transfers with GSP - fw: Sync DMA after setup panthor: - Fix partial BO mappings to GPU rockchip: - vop: Avoid null-ptr deref in plane-state check vmwgfx: - Avoid null-ptr deref in surface creation -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmc3lU8ACgkQDHTzWXnE hr4u+Q/9GalCWjR6gCAgM2Rbm3h4M0FdkU0rDoVs1O5lFd6EPlTCAUFskVhmmgR7 oRYu04Q5MO/nT9CWx3mpGAh28FRTJEI6sVZG2fOcCuEyyZ7GSa6MKvDSq/IrVRU/ j05M4pFOHGH0z7sa8tDhYcgfP24W5cT+j5COjb9OW2ULd+I+Hf6sPA+h1ziDbZZA NsD+VENemt1KVRzCiNe330IImG/LaGjz304T8G991i5oJLFsOpFRuaMJo7mKOEHg BJAH/F8PZA6uzWtr3WIF4x8jZGTWftr0aHtfzIM716cTaMQfkKnr/15iQDkAEstI E4U6IZspPZ8+OPe7BBTPznd+JHhZi+V33kZt1cQWaM3bcTeQwEtEngYzNKEpDrjB gajl7rZZcaE1bLtDxkxT6E6HMNCSaaUlQ+kxoBJnlaGp2CsceuWPPyb6SXimn2Kh 99bXI5tXLP/VYTN3rX6nctElyJbGF1wxlp8SPoVBL2+TS2DDZm4JEjJsljS7p2YX x+lxhcDp8xNd0IYyuWjxht5qAJdUdinX5E2X27gGdac3051vYw6VE4Xd/fzTqV1h kK0qbrhZjMWQU/2vngFaXReb3h8H0qct9hUM69012EKIlgLQR2NYfEuSkdSaQi7V aMh+9D45puhsUAhWZQa07tnB+Z59KytRNInmP4i7U2PF3CLZSlw= =6Ltb -----END PGP SIGNATURE----- Merge tag 'drm-fixes-2024-11-16' of https://gitlab.freedesktop.org/drm/kernel Pull drm fixes from Dave Airlie: "Final week of fixes, lots of small amdgpu fixes, some i915 and xe fixes, the nouveau changes fix a recent regression and some laptop panel black screens, then a couple of other misc ones. It's probably a little busier than I'd like, but each fix seems fine. amdgpu: - PSR fix - Panel replay fixes - DML fix - vblank power fix - Fix video caps - SMU 14.0 fix - GPUVM fix - MES 12 fix - APU carve out fix - DC vbios fix - NBIO fix i915: - Don't load GSC on ARL-H and ARL-U if too old FW - Avoid potential OOPS in enabling/disabling TV output xe: - Fix unlock on exec ioctl error path - Fix hibernation on LNL due to ggtt getting lost - Fix missing runtime PM in OA release bridge: - tc358768: Fix DSI command tx nouveau: - Fix GSP AUX error handling - dp: Handle retires for AUX CH transfers with GSP - fw: Sync DMA after setup panthor: - Fix partial BO mappings to GPU rockchip: - vop: Avoid null-ptr deref in plane-state check vmwgfx: - Avoid null-ptr deref in surface creation" * tag 'drm-fixes-2024-11-16' of https://gitlab.freedesktop.org/drm/kernel: (27 commits) drm/bridge: tc358768: Fix DSI command tx drm/vmwgfx: avoid null_ptr_deref in vmw_framebuffer_surface_create_handle nouveau/dp: handle retries for AUX CH transfers with GSP. nouveau: handle EBUSY and EAGAIN for GSP aux errors. nouveau: fw: sync dma after setup is called. drm/xe/oa: Fix "Missing outer runtime PM protection" warning drm/xe: handle flat ccs during hibernation on igpu drm/xe: improve hibernation on igpu drm/xe: Restore system memory GGTT mappings drm/xe: Ensure all locks released in exec IOCTL drm/panthor: Fix handling of partial GPU mapping of BOs drm/amd: Fix initialization mistake for NBIO 7.7.0 Revert "drm/amd/display: parse umc_info or vram_info based on ASIC" drm/amd/display: Fix failure to read vram info due to static BP_RESULT drm/amdgpu: enable GTT fallback handling for dGPUs only drm/i915: Grab intel_display from the encoder to avoid potential oopsies drm/i915/gsc: ARL-H and ARL-U need a newer GSC FW. drm/amdgpu/mes12: correct kiq unmap latency drm/amdgpu: fix check in gmc_v9_0_get_vm_pte() drm/amd/pm: print pp_dpm_mclk in ascending order on SMU v14.0.0 ... |
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Linus Torvalds
|
f539573284 |
RDMA v6.12 third rc pull
- Revert a change to the VLAN logic, this broke previously work ROCE configurations - Fix a memory leak on error unwinding in bnxt_re -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRRRCHOFoQz/8F5bUaFwuHvBreFYQUCZzdj8AAKCRCFwuHvBreF YcsYAQCEv9kx5iw+Z0hoAyUw4a8nXZN75FMQZuQqJNfQAdhexgD+MorBq4RgZgD8 EIHxQPMyK0S9dlS12J55yVDu72dZ8gg= =H/X8 -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma Pull rdma fixes from Jason Gunthorpe: - Revert a change to the VLAN logic, this broke previously working ROCE configurations - Fix a memory leak on error unwinding in bnxt_re * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: Revert "RDMA/core: Fix ENODEV error for iWARP test over vlan" RDMA/bnxt_re: Remove some dead code RDMA/bnxt_re: Fix some error handling paths in bnxt_re_probe() |
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Dave Airlie
|
21c1c6c7d7 |
Driver Changes:
- Fix unlock on exec ioctl error path (Matthew Brost) - Fix hibernation on LNL due to ggtt getting lost (Matthew Brost / Matthew Auld) - Fix missing runtime PM in OA release (Ashutosh) -----BEGIN PGP SIGNATURE----- iQJNBAABCAA3FiEE6rM8lpABPHM5FqyDm6KlpjDL6lMFAmc2jg4ZHGx1Y2FzLmRl bWFyY2hpQGludGVsLmNvbQAKCRCboqWmMMvqU/gxD/4xKW6qHJe3S9UwfIR7CPtw myrcxfwHG5ryzZsmGh6mwaFxYdGQ4ibdWAKZGF0NrZUsKig+8ADRRE7PoOyyZDV9 0uZ8lOIMPfMPZ8tHvQHbu7l/8LGXcV/R27ts7Rr9vGr2Ox8/5NTGtzykhUDb2xiO qZS4BPF/uuis9MLJRwoAiI2vwrUfFg16To+1NX3rmtBvzbH4DdY9l7QQV5B+22Rc UDQVRAUTXl3ER7TtwwVsHzuctsWJb/5H+1vM6QNIltWWTXPBA8qVC9092SwIWOoF 7c4Ap440V8AHyjjnzSM0N2rO86L6Mo5QY04gv4y7dywKHT+JW95QNWKPizJJeIHd to62AQdlVDCLQqc4jEpIPEorF5wP/qw8Polwa4eTlsGpGMoUkcRVEXO8JA8Rd7Rt EtHWb+ZFproBYtAvrCUyUMlmaviLK+eMsEaNlt+uQqQP3ZAfPvcItcxtSXn3Jsfw 47v/jvP3OddZgOmPHqo1jfZBqACfKt1trqSg2YYOwfGLaZ+KhgZz7rw8n5WKSmyK XEa5y9stffM/3g9PIvroVQc/INAhS++WhXnGRZ/fcxQrFrKQ7sFMXFUs1OUbgv7j GUVZ4V/BGJy/o58bblSla/NSwiX2bHB4d8grS5rtKMMNe9PxgG3ldn8YG4cFADmP NnR/YsBOf1mjvfdiUUMmxQ== =VWVg -----END PGP SIGNATURE----- Merge tag 'drm-xe-fixes-2024-11-14' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes Driver Changes: - Fix unlock on exec ioctl error path (Matthew Brost) - Fix hibernation on LNL due to ggtt getting lost (Matthew Brost / Matthew Auld) - Fix missing runtime PM in OA release (Ashutosh) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/5ntcf2ssmmvo5dsf2mdcee4guwwmpbm3xrlufgt2pdfmznzjo3@62ygo3bxkock |
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Song Liu
|
886e4757f4 |
MAINTAINERS: Update git tree for mdraid subsystem
Moving the official git tree to the MDRAID Group account. Signed-off-by: Song Liu <song@kernel.org> |
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Linus Torvalds
|
1b597e1cf0 |
pmdomain core:
- Add GENPD_FLAG_DEV_NAME_FW flag to generate unique names pmdomain providers: - arm: Use FLAG_DEV_NAME_FW to ensure unique names - imx93-blk-ctrl: Fix the remove path arm_scmi/qcom-cpucp: - Report duplicate OPPs as firmware bugs for arm_scmi - Skip OPP duplicates for arm_scmi - Mark the qcom-cpucp mailbox irq with IRQF_NO_SUSPEND flag -----BEGIN PGP SIGNATURE----- iQJLBAABCgA1FiEEugLDXPmKSktSkQsV/iaEJXNYjCkFAmc3I+wXHHVsZi5oYW5z c29uQGxpbmFyby5vcmcACgkQ/iaEJXNYjCmsYw/+PphbBhA6Tu1SjSwpkxx0QNBr isc0DSwRG+iVfnwpeBB9lS5yLNwltbe8goZAVZYcFUdrCPs+OX5HZimFklAAufFh X/S5Ge3MyXwiRjwwyz04wMl8SF2W4P90cLC9w8hB85dJ0/lhgTLCbi//eHXHQKkq hzsVpusO4t+wa2HoTjdq6rqlSKW2NdUyZxrCWLDWaXrbqnBL0yJRs1rn2034w/qi RannE36bm8YUTBgyiayViEGWC73VUtxB07oSn8Qq9dYzwjIUqVpqoBBQiJL4VCFR /147/40rcq7T7B8qp9/3S82EV9vX26VAa/gUDDosb/RoB9XbBtx04QPBaHPiVitf 6kjqn6vD+F+jap+u7i0Q4PMvdfmSUfVeqbEx5ED3rpAbzfBazgyO4e3JAGFZOvqj M6YP8i6mSmTOUZbkuF1dwmD9DtuoySaWzTrwUFluu8VMykTo/F8GqkeZXPIKg9CO H+OXq81+btVOwXZ/HFRQPNVXY8Q7gQIQAsLoAW8QqXxzFJ8ovYHs0voT4KPXeWzu 56dWATJ6uh6P+zjIbWDDsg9m/tXhH5CGoRpn33OkhIBYnsSnoTDF6h4mVGr4K6Zn W+uPS+Xg6nbXxaZHomJG3dDSpRWUA1FNVwiLZbnbvEBi5aU7FwdZNc8MCV6h5DOw zaOeRa1zHz8F2K4l8z0= =pPcz -----END PGP SIGNATURE----- Merge tag 'pmdomain-v6.12-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm Pull pmdomain fixes from Ulf Hansson: "pmdomain core: - Add GENPD_FLAG_DEV_NAME_FW flag to generate unique names pmdomain providers: - arm: Use FLAG_DEV_NAME_FW to ensure unique names - imx93-blk-ctrl: Fix the remove path arm_scmi/qcom-cpucp: - Report duplicate OPPs as firmware bugs for arm_scmi - Skip OPP duplicates for arm_scmi - Mark the qcom-cpucp mailbox irq with IRQF_NO_SUSPEND flag" * tag 'pmdomain-v6.12-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm: mailbox: qcom-cpucp: Mark the irq with IRQF_NO_SUSPEND flag firmware: arm_scmi: Report duplicate opps as firmware bugs firmware: arm_scmi: Skip opp duplicates pmdomain: imx93-blk-ctrl: correct remove path pmdomain: arm: Use FLAG_DEV_NAME_FW to ensure unique names pmdomain: core: Add GENPD_FLAG_DEV_NAME_FW flag |
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Linus Torvalds
|
aa35f5446f |
MMC host:
- dw_mmc: Revert fix for IDMAC operation with pages bigger than 4K - sunxi-mmc: Fix A100 compatible description -----BEGIN PGP SIGNATURE----- iQJLBAABCgA1FiEEugLDXPmKSktSkQsV/iaEJXNYjCkFAmc3GvwXHHVsZi5oYW5z c29uQGxpbmFyby5vcmcACgkQ/iaEJXNYjCknhw/6ArBr62dUObrZ0NgDcqm56hwa NgS0iwinhDZ3h8hM2xgumQ+IDcTAFNxMbcxgmjXPZ38vP9WRy1Una0iRUQrpH8g5 vxFvA0oThQ+2jH54CFvyIcb6QCvKfNGfVsgkmDZKc/uIZc3TfLHdZzbwLT8EXsSv 6lLyFXaQVJD2rFYfGXHqDGOwsSLrRea4Vi6g+lqg/SVoxUQsaH0/h5oKHHcUn3ud asuCB34loeLuXiLmduFEBjeCaIABq/ISzTS4IP5lf7hhzEeaMA1QF2YWQMun/LrU XnfGXjU2jTYY85b4hrFBr5+dBlyAmUuKVhYY0/HBhTKtRLJunxzNto28JZgmYX9z DaEBOkobP13fPoUOKje09pnE3V8sRgAVkanz/fIS+rNe1RR2UI2OdDJWCRn1Ee0O 3ougZrqNvW1RokszqHlCKdAZiZNnEuS3IFlDpNK4Qg3eLSULQjRJie7eFBhqxe/n odsoAyPrg/qaN4QNMa4ta7qdqrw9Fma5R6ijuCGnY2CGF/9XyMYx1mpTZX5ZZlFN mMdTvr+EQQuj9FimA16Zo4JefHviDE9/aSuSsxsUxwGrMRVi+hOlswvU3/gjxFzl A265luWomDfmeRUf5rfbjTEMr6m2a4VP+zghA0OkaXwro3/r3HT/R9EMRPIDM+wD jw2IWfOqZcHpOWdK2D4= =bXBC -----END PGP SIGNATURE----- Merge tag 'mmc-v6.12-rc3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc Pull MMC host fixes from Ulf Hansson: - dw_mmc: Revert fix for IDMAC operation with pages bigger than 4K - sunxi-mmc: Fix A100 compatible description * tag 'mmc-v6.12-rc3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: Revert "mmc: dw_mmc: Fix IDMAC operation with pages bigger than 4K" mmc: sunxi-mmc: Fix A100 compatible description |
||
Linus Torvalds
|
eeae5ef6bf |
sound fixes for 6.12
A few last-minute fixes. All changes are device-specific small fixes that should be pretty safe to apply. -----BEGIN PGP SIGNATURE----- iQJCBAABCAAsFiEEIXTw5fNLNI7mMiVaLtJE4w1nLE8FAmc2IUEOHHRpd2FpQHN1 c2UuZGUACgkQLtJE4w1nLE/vqhAA0m5OhLPRJU3O4t8LVlaJKzRm8mS39jJ7bnpP I116NxZTtyS840CJbb5/731XCrS8IRz1RlqY6Ex9Y7kAnCK05h9R+vEw6RSH13rJ XZgaAzK4qssx0x9Y/kd62x+/cRTLKPQHFtpJYzc2GYAZqrEovH4VHZxXfwtOd9HY fVCXt2Bv7tzT3ZP9/3rq8QMEM4c+al3voB9EnIsL/4YMBLSkO17hFi8NlLjGiBCz 6shh1y/3JeBqVq/pj4E6xvy5ba+GUJI5h/oxxqaEF0u7AwaZbg+p6GF+yZJSybP2 Ry3y6lpU8gN51ZN5B6HVdgDkTLJoWTqFPgAu4purywmpJ0NAF/T7cE/uizNOdX3F 4l3PTwll+4MFMmKTA1MElVYTlVj/ogOm1DbeZfovtwJoQEs0xP3DJS0TVFdZtKGr nISdQHyZ23mV/8UHq6eHKQjM4sK3BFJQJptCT9vYp3H7k6bPdntCG8dJLGTnZTCW nPmDRfvh8hh95kYXHfPdtP52btoG/Kd5L5104ta9tfqRgsbze0mawxFph3qUyHEn cpjq/XOgzt2prFlaZGBHMw46/62XlQ1lEZ8hSrdi9bRIZiSibeGr4FncRqBJBlTI iahMBlxPEEt1D8wglc3YAQIFPR0dvfEjpm6uSCtu2Il+DS1V6J1SjfFhsL2At3PT Ee5ero8= =Erlm -----END PGP SIGNATURE----- Merge tag 'sound-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "A few last-minute fixes. All changes are device-specific small fixes that should be pretty safe to apply" * tag 'sound-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda/realtek - update set GPIO3 to default for Thinkpad with ALC1318 ALSA: hda/realtek: fix mute/micmute LEDs for a HP EliteBook 645 G10 ALSA: hda/realtek - Fixed Clevo platform headset Mic issue ALSA: usb-audio: Fix Yamaha P-125 Quirk Entry ASoC: max9768: Fix event generation for playback mute ASoC: intel: sof_sdw: add quirk for Dell SKU ASoC: audio-graph-card2: Purge absent supplies for device tree nodes |
||
Linus Torvalds
|
842c7e5834 |
This push fixes a regression in the MIPS CRC32C code.
-----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEn51F/lCuNhUwmDeSxycdCkmxi6cFAmccju4ACgkQxycdCkmx i6db/BAAyqJ3joT62295GBRcgFMn+nZe/1Tq4jkFAj7saoCzFRn70SWu0nq3Zaed xaQNl5BePD57ySUtsGm80qTISxOSE3zJ3c1S2vSisO6pjryMGuUFI1nPynD5sFz8 O+GMQB85qtZMOQZUtNQ6kt3gugGdoIvdgM0D/mG4qhRa5H6EeagV7rL+h89AAQ1M c+ggOxpX2RKFFNsw+7xBjlIEMnYtl+Qq5ifgp5wUGetbQwUhWBF9lwBm7OV06Dp5 pnwQt2ctw2D12ZFyG25ncHHjf3ZzEuNU75SWyJQT+MuAO+4eSAplAr+MwvOytwqc bxeWz5T4qfV3RqFCVJMpTzYrBG6jgUZrvUA1s4NNCXi07YhakZIlKcCql0tGAlkN xg2MQxlwp0vmlayzq6PcT0zem8/pr0hvEUGl6FOTq1yCuRnUpre/kAIJY5QdQ/P7 TJ1KczyOJL56VEYwFEWmIFWKdz/XDmJxehiQVvFHOBA89zxsNv3/+oH6knMXEFXl nmRwCDIjtZTv0QORL3h/odULwSxa6cN56+MrooIlrsDBDAajCXAj8lwBatgmI1QT sCo1z2GMWQZ2j9R5nfyZRdrwIn8LXMozzRd/cfBkVi7hn7Mp8bz3xDOtK8TFik7l iYmekMXH7itafm8yhDstLbk2dmymmk3+Gk41qr83vrAVZXk3YjY= =GphV -----END PGP SIGNATURE----- Merge tag 'v6.12-p5' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fix from Herbert Xu: "Fix a regression in the MIPS CRC32C code" * tag 'v6.12-p5' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: mips/crc32 - fix the CRC32C implementation |
||
Linus Torvalds
|
d79944b094 |
sched_ext: One more fix for v6.12-rc7
ops.cpu_acquire() was being invoked with the wrong kfunc mask allowing the operation to call kfuncs which shouldn't be allowed. Fix it by using SCX_KF_REST instead, which is trivial and low risk. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCZzamXw4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGRReAP4/JQ1mKkJv+9nTZkW9OcFFHGVVhrprOUEEFk5j pmHwPAD8DTBMMS/BCQOoXDdiB9uU7ut6M8VdsIj1jmJkMja+eQI= =942J -----END PGP SIGNATURE----- Merge tag 'sched_ext-for-6.12-rc7-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext Pull sched_ext fix from Tejun Heo: "One more fix for v6.12-rc7 ops.cpu_acquire() was being invoked with the wrong kfunc mask allowing the operation to call kfuncs which shouldn't be allowed. Fix it by using SCX_KF_REST instead, which is trivial and low risk" * tag 'sched_ext-for-6.12-rc7-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: sched_ext: ops.cpu_acquire() should be called with SCX_KF_REST |
||
Linus Torvalds
|
c9dd4571ad |
for-6.12-rc7-tag
-----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE8rQSAMVO+zA4DBdWxWXV+ddtWDsFAmc2aGIACgkQxWXV+ddt WDu0AQ/9FLfC/e3X2GjZ0auna/7A/rF8MPoATUdAyHn75Md6Hc8PXpi1YvMph+ba pvoufOqrU66/g0UNeacgsp6rF4rKJHg0q9Id+7wueLnDr41g9paXjsLYItq4j26w GusDiZvUDwuDmb70vlTXrgAfnjooIdSwqJTlIzJxvl4wrNzOiUlUJtTMzmUrwn/9 Lf/iByWlGcPKKBc+1ZzFz4HlVOZZSt9YePeJw2/Aul2OMtuI3RTTAL/NtjaFIlYc pb+NHVqFrrfgC+xo68hLBmnsBfS41EGR58rYRjEuQo0+hARa8WbxL3DNA/E/Vi5X dsq/wQVlD7IVIWCoF9J94/iyDdwlDOGFMoL6FUrJwDtPGN/v/xxtA6ruvuC7k5zy bHCR8ZVrJWVaxE7u0Gtl+hFPpDTwNTR7SfvK69gxPfci1cN0m2wCNK02SEUJwV09 N82N2ENGGwyWS+nOl/ERB+7A0QxViMr3JpUrPzSYqsmn8bwDvovSjK2fFouJoSey bpAzbFWj+OS0O9nnRqabTJDM/Tk9O0s0Ye76aUS+Vfk9d5EuVfAg6pHiOBcFDhsK UEG9QbPltfh6LPDHCdV93HOOsC0uNxCTCSpbQ9LFGKBICQsPIX/vZeV45fNFJDLX j5kEtHFVU3snU+jA97nvYXPRANDnnNx/EzXv7zo0Ye8L+plecBs= =ssYj -----END PGP SIGNATURE----- Merge tag 'for-6.12-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux Pull btrfs fix from David Sterba: "One more fix that seems urgent and good to have in 6.12 final. It could potentially lead to unexpected transaction aborts, due to wrong comparison and order of processing of delayed refs" * tag 'for-6.12-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: btrfs: fix incorrect comparison for delayed refs |
||
Jens Axboe
|
957860cbc1 |
block: make struct rq_list available for !CONFIG_BLOCK
A previous commit changed how requests are linked in the plug structure,
but unlike the previous method, it uses a new type for it rather than
struct request. The latter is available even for !CONFIG_BLOCK, while
struct rq_list is now. Move it outside CONFIG_BLOCK.
Reported-by: Nathan Chancellor <nathan@kernel.org>
Fixes:
|
||
Dmitry Antipov
|
737f341378 |
ocfs2: uncache inode which has failed entering the group
Syzbot has reported the following BUG:
kernel BUG at fs/ocfs2/uptodate.c:509!
...
Call Trace:
<TASK>
? __die_body+0x5f/0xb0
? die+0x9e/0xc0
? do_trap+0x15a/0x3a0
? ocfs2_set_new_buffer_uptodate+0x145/0x160
? do_error_trap+0x1dc/0x2c0
? ocfs2_set_new_buffer_uptodate+0x145/0x160
? __pfx_do_error_trap+0x10/0x10
? handle_invalid_op+0x34/0x40
? ocfs2_set_new_buffer_uptodate+0x145/0x160
? exc_invalid_op+0x38/0x50
? asm_exc_invalid_op+0x1a/0x20
? ocfs2_set_new_buffer_uptodate+0x2e/0x160
? ocfs2_set_new_buffer_uptodate+0x144/0x160
? ocfs2_set_new_buffer_uptodate+0x145/0x160
ocfs2_group_add+0x39f/0x15a0
? __pfx_ocfs2_group_add+0x10/0x10
? __pfx_lock_acquire+0x10/0x10
? mnt_get_write_access+0x68/0x2b0
? __pfx_lock_release+0x10/0x10
? rcu_read_lock_any_held+0xb7/0x160
? __pfx_rcu_read_lock_any_held+0x10/0x10
? smack_log+0x123/0x540
? mnt_get_write_access+0x68/0x2b0
? mnt_get_write_access+0x68/0x2b0
? mnt_get_write_access+0x226/0x2b0
ocfs2_ioctl+0x65e/0x7d0
? __pfx_ocfs2_ioctl+0x10/0x10
? smack_file_ioctl+0x29e/0x3a0
? __pfx_smack_file_ioctl+0x10/0x10
? lockdep_hardirqs_on_prepare+0x43d/0x780
? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
? __pfx_ocfs2_ioctl+0x10/0x10
__se_sys_ioctl+0xfb/0x170
do_syscall_64+0xf3/0x230
entry_SYSCALL_64_after_hwframe+0x77/0x7f
...
</TASK>
When 'ioctl(OCFS2_IOC_GROUP_ADD, ...)' has failed for the particular
inode in 'ocfs2_verify_group_and_input()', corresponding buffer head
remains cached and subsequent call to the same 'ioctl()' for the same
inode issues the BUG() in 'ocfs2_set_new_buffer_uptodate()' (trying
to cache the same buffer head of that inode). Fix this by uncaching
the buffer head with 'ocfs2_remove_from_cache()' on error path in
'ocfs2_group_add()'.
Link: https://lkml.kernel.org/r/20241114043844.111847-1-dmantipov@yandex.ru
Fixes:
|
||
Jinjiang Tu
|
8ce41b0f9d |
mm: fix NULL pointer dereference in alloc_pages_bulk_noprof
We triggered a NULL pointer dereference for ac.preferred_zoneref->zone in alloc_pages_bulk_noprof() when the task is migrated between cpusets. When cpuset is enabled, in prepare_alloc_pages(), ac->nodemask may be ¤t->mems_allowed. when first_zones_zonelist() is called to find preferred_zoneref, the ac->nodemask may be modified concurrently if the task is migrated between different cpusets. Assuming we have 2 NUMA Node, when traversing Node1 in ac->zonelist, the nodemask is 2, and when traversing Node2 in ac->zonelist, the nodemask is 1. As a result, the ac->preferred_zoneref points to NULL zone. In alloc_pages_bulk_noprof(), for_each_zone_zonelist_nodemask() finds a allowable zone and calls zonelist_node_idx(ac.preferred_zoneref), leading to NULL pointer dereference. __alloc_pages_noprof() fixes this issue by checking NULL pointer in commit |
||
Yafang Shao
|
0740e54304 |
mm, doc: update read_ahead_kb for MADV_HUGEPAGE
MADV_HUGEPAGE is a new addition to readahead with behavior distinct from normal pages. To prevent confusion, we should update the documentation accordingly. Link: https://lkml.kernel.org/r/20241113150711.1685-1-laoar.shao@gmail.com Signed-off-by: Yafang Shao <laoar.shao@gmail.com> Cc: David Hildenbrand <david@redhat.com> Cc: Matthew Wilcox <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
Dan Carpenter
|
669b0cb81e |
fs/proc/task_mmu: prevent integer overflow in pagemap_scan_get_args()
The "arg->vec_len" variable is a u64 that comes from the user at the start
of the function. The "arg->vec_len * sizeof(struct page_region))"
multiplication can lead to integer wrapping. Use size_mul() to avoid
that.
Also the size_add/mul() functions work on unsigned long so for 32bit
systems we need to ensure that "arg->vec_len" fits in an unsigned long.
Link: https://lkml.kernel.org/r/39d41335-dd4d-48ed-8a7f-402c57d8ea84@stanley.mountain
Fixes:
|
||
Qun-Wei Lin
|
fd7b4f9f46 |
sched/task_stack: fix object_is_on_stack() for KASAN tagged pointers
When CONFIG_KASAN_SW_TAGS and CONFIG_KASAN_STACK are enabled, the object_is_on_stack() function may produce incorrect results due to the presence of tags in the obj pointer, while the stack pointer does not have tags. This discrepancy can lead to incorrect stack object detection and subsequently trigger warnings if CONFIG_DEBUG_OBJECTS is also enabled. Example of the warning: ODEBUG: object 3eff800082ea7bb0 is NOT on stack ffff800082ea0000, but annotated. ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at lib/debugobjects.c:557 __debug_object_init+0x330/0x364 Modules linked in: CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.12.0-rc5 #4 Hardware name: linux,dummy-virt (DT) pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __debug_object_init+0x330/0x364 lr : __debug_object_init+0x330/0x364 sp : ffff800082ea7b40 x29: ffff800082ea7b40 x28: 98ff0000c0164518 x27: 98ff0000c0164534 x26: ffff800082d93ec8 x25: 0000000000000001 x24: 1cff0000c00172a0 x23: 0000000000000000 x22: ffff800082d93ed0 x21: ffff800081a24418 x20: 3eff800082ea7bb0 x19: efff800000000000 x18: 0000000000000000 x17: 00000000000000ff x16: 0000000000000047 x15: 206b63617473206e x14: 0000000000000018 x13: ffff800082ea7780 x12: 0ffff800082ea78e x11: 0ffff800082ea790 x10: 0ffff800082ea79d x9 : 34d77febe173e800 x8 : 34d77febe173e800 x7 : 0000000000000001 x6 : 0000000000000001 x5 : feff800082ea74b8 x4 : ffff800082870a90 x3 : ffff80008018d3c4 x2 : 0000000000000001 x1 : ffff800082858810 x0 : 0000000000000050 Call trace: __debug_object_init+0x330/0x364 debug_object_init_on_stack+0x30/0x3c schedule_hrtimeout_range_clock+0xac/0x26c schedule_hrtimeout+0x1c/0x30 wait_task_inactive+0x1d4/0x25c kthread_bind_mask+0x28/0x98 init_rescuer+0x1e8/0x280 workqueue_init+0x1a0/0x3cc kernel_init_freeable+0x118/0x200 kernel_init+0x28/0x1f0 ret_from_fork+0x10/0x20 ---[ end trace 0000000000000000 ]--- ODEBUG: object 3eff800082ea7bb0 is NOT on stack ffff800082ea0000, but annotated. ------------[ cut here ]------------ Link: https://lkml.kernel.org/r/20241113042544.19095-1-qun-wei.lin@mediatek.com Signed-off-by: Qun-Wei Lin <qun-wei.lin@mediatek.com> Cc: Andrew Yang <andrew.yang@mediatek.com> Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Cc: Casper Li <casper.li@mediatek.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chinwen Chang <chinwen.chang@mediatek.com> Cc: Kent Overstreet <kent.overstreet@linux.dev> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Pasha Tatashin <pasha.tatashin@soleen.com> Cc: Shakeel Butt <shakeel.butt@linux.dev> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
Dave Vasilevsky
|
31daa34315 |
crash, powerpc: default to CRASH_DUMP=n on PPC_BOOK3S_32
Fixes boot failures on 6.9 on PPC_BOOK3S_32 machines using Open Firmware.
On these machines, the kernel refuses to boot from non-zero
PHYSICAL_START, which occurs when CRASH_DUMP is on.
Since most PPC_BOOK3S_32 machines boot via Open Firmware, it should
default to off for them. Users booting via some other mechanism can still
turn it on explicitly.
Does not change the default on any other architectures for the
time being.
Link: https://lkml.kernel.org/r/20240917163720.1644584-1-dave@vasilevsky.ca
Fixes:
|
||
Jann Horn
|
a4a282daf1 |
mm/mremap: fix address wraparound in move_page_tables()
On 32-bit platforms, it is possible for the expression `len + old_addr <
old_end` to be false-positive if `len + old_addr` wraps around.
`old_addr` is the cursor in the old range up to which page table entries
have been moved; so if the operation succeeded, `old_addr` is the *end* of
the old region, and adding `len` to it can wrap.
The overflow causes mremap() to mistakenly believe that PTEs have been
copied; the consequence is that mremap() bails out, but doesn't move the
PTEs back before the new VMA is unmapped, causing anonymous pages in the
region to be lost. So basically if userspace tries to mremap() a
private-anon region and hits this bug, mremap() will return an error and
the private-anon region's contents appear to have been zeroed.
The idea of this check is that `old_end - len` is the original start
address, and writing the check that way also makes it easier to read; so
fix the check by rearranging the comparison accordingly.
(An alternate fix would be to refactor this function by introducing an
"orig_old_start" variable or such.)
Tested in a VM with a 32-bit X86 kernel; without the patch:
```
user@horn:~/big_mremap$ cat test.c
#define _GNU_SOURCE
#include <stdlib.h>
#include <stdio.h>
#include <err.h>
#include <sys/mman.h>
#define ADDR1 ((void*)0x60000000)
#define ADDR2 ((void*)0x10000000)
#define SIZE 0x50000000uL
int main(void) {
unsigned char *p1 = mmap(ADDR1, SIZE, PROT_READ|PROT_WRITE,
MAP_ANONYMOUS|MAP_PRIVATE|MAP_FIXED_NOREPLACE, -1, 0);
if (p1 == MAP_FAILED)
err(1, "mmap 1");
unsigned char *p2 = mmap(ADDR2, SIZE, PROT_NONE,
MAP_ANONYMOUS|MAP_PRIVATE|MAP_FIXED_NOREPLACE, -1, 0);
if (p2 == MAP_FAILED)
err(1, "mmap 2");
*p1 = 0x41;
printf("first char is 0x%02hhx\n", *p1);
unsigned char *p3 = mremap(p1, SIZE, SIZE,
MREMAP_MAYMOVE|MREMAP_FIXED, p2);
if (p3 == MAP_FAILED) {
printf("mremap() failed; first char is 0x%02hhx\n", *p1);
} else {
printf("mremap() succeeded; first char is 0x%02hhx\n", *p3);
}
}
user@horn:~/big_mremap$ gcc -static -o test test.c
user@horn:~/big_mremap$ setarch -R ./test
first char is 0x41
mremap() failed; first char is 0x00
```
With the patch:
```
user@horn:~/big_mremap$ setarch -R ./test
first char is 0x41
mremap() succeeded; first char is 0x41
```
Link: https://lkml.kernel.org/r/20241111-fix-mremap-32bit-wrap-v1-1-61d6be73b722@google.com
Fixes:
|