Dave Chinner f8f9ee4794 xfs: add kmem_alloc_io() ... Memory we use to submit for IO needs strict alignment to the underlying driver contraints. Worst case, this is 512 bytes. Given that all allocations for IO are always a power of 2 multiple of 512 bytes, the kernel heap provides natural alignment for objects of these sizes and that suffices. Until, of course, memory debugging of some kind is turned on (e.g. red zones, poisoning, KASAN) and then the alignment of the heap objects is thrown out the window. Then we get weird IO errors and data corruption problems because drivers don't validate alignment and do the wrong thing when passed unaligned memory buffers in bios. TO fix this, introduce kmem_alloc_io(), which will guaranteeat least 512 byte alignment of buffers for IO, even if memory debugging options are turned on. It is assumed that the minimum allocation size will be 512 bytes, and that sizes will be power of 2 mulitples of 512 bytes. Use this everywhere we allocate buffers for IO. This no longer fails with log recovery errors when KASAN is enabled due to the brd driver not handling unaligned memory buffers: # mkfs.xfs -f /dev/ram0 ; mount /dev/ram0 /mnt/test Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>		2019-08-26 17:43:15 -07:00
..
libxfs	xfs: add kmem allocation trace points	2019-08-26 17:43:14 -07:00
scrub	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
kmem.c	xfs: add kmem_alloc_io()	2019-08-26 17:43:15 -07:00
kmem.h	xfs: add kmem_alloc_io()	2019-08-26 17:43:15 -07:00
Makefile	xfs: move xfs_trans_inode.c to libxfs/	2019-07-15 08:10:18 -07:00
mrlock.h	xfs: convert to SPDX license tags	2018-06-06 14:17:53 -07:00
xfs_acl.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_acl.h	xfs: convert to SPDX license tags	2018-06-06 14:17:53 -07:00
xfs_aops.c	for-linus-20190715	2019-07-15 21:20:52 -07:00
xfs_aops.h	xfs: remove the unused xfs_count_page_state declaration	2019-06-30 09:05:17 -07:00
xfs_attr_inactive.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_attr_list.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_bio_io.c	xfs: chain bios the right way around in xfs_rw_bdev	2019-07-10 10:04:16 -07:00
xfs_bmap_item.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_bmap_item.h	xfs: merge xfs_bud_init into xfs_trans_get_bud	2019-06-28 19:27:36 -07:00
xfs_bmap_util.c	xfs: remove unused header files	2019-06-28 19:30:43 -07:00
xfs_bmap_util.h	xfs: flush removing page cache in xfs_reflink_remap_prep	2018-11-21 10:10:53 -08:00
xfs_buf_item.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_buf_item.h	xfs: remove the xfs_log_item_t typedef	2019-06-28 19:27:33 -07:00
xfs_buf.c	xfs: add kmem_alloc_io()	2019-08-26 17:43:15 -07:00
xfs_buf.h	xfs: get allocation alignment from the buftarg	2019-08-26 17:43:14 -07:00
xfs_dir2_readdir.c	xfs: remove unused header files	2019-06-28 19:30:43 -07:00
xfs_discard.c	xfs: remove unused header files	2019-06-28 19:30:43 -07:00
xfs_discard.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
xfs_dquot_item.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_dquot_item.h	xfs: remove the xfs_log_item_t typedef	2019-06-28 19:27:33 -07:00
xfs_dquot.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_dquot.h	xfs: remove the debug-only q_transp field from struct xfs_dquot	2019-06-12 08:59:59 -07:00
xfs_error.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_error.h	xfs: Introduce XFS_PTAG_VERIFIER_ERROR panic mask	2019-02-11 16:07:00 -08:00
xfs_export.c	xfs: remove unused header files	2019-06-28 19:30:43 -07:00
xfs_export.h	xfs: convert to SPDX license tags	2018-06-06 14:17:53 -07:00
xfs_extent_busy.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_extent_busy.h	xfs: convert to SPDX license tags	2018-06-06 14:17:53 -07:00
xfs_extfree_item.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_extfree_item.h	xfs: merge xfs_efd_init into xfs_trans_get_efd	2019-06-28 19:27:35 -07:00
xfs_file.c	- virtio_pmem: The new virtio_pmem facility introduces a paravirtualized	2019-07-18 10:52:08 -07:00
xfs_filestream.c	xfs: remove unused header files	2019-06-28 19:30:43 -07:00
xfs_filestream.h	xfs: convert to SPDX license tags	2018-06-06 14:17:53 -07:00
xfs_fsmap.c	xfs: remove unused header files	2019-06-28 19:30:43 -07:00
xfs_fsmap.h	xfs: convert to SPDX license tags	2018-06-06 14:17:53 -07:00
xfs_fsops.c	xfs: remove unused header files	2019-06-28 19:30:43 -07:00
xfs_fsops.h	xfs: change some error-less functions to void types	2019-05-01 20:26:30 -07:00
xfs_globals.c	xfs: multithreaded iwalk implementation	2019-07-03 07:33:26 -07:00
xfs_health.c	xfs: introduce new v5 bulkstat structure	2019-07-03 20:36:26 -07:00
xfs_icache.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_icache.h	xfs: rename the speculative block allocation reclaim toggle functions	2019-04-26 12:28:55 -07:00
xfs_icreate_item.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_icreate_item.h	xfs: convert to SPDX license tags	2018-06-06 14:17:53 -07:00
xfs_inode_item.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_inode_item.h	xfs: remove the xfs_log_item_t typedef	2019-06-28 19:27:33 -07:00
xfs_inode.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_inode.h	xfs: widen inode delalloc block counter to 64-bits	2019-04-23 08:36:23 -07:00
xfs_ioctl32.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_ioctl32.h	xfs: remove various bulk request typedef usage	2019-07-03 20:36:25 -07:00
xfs_ioctl.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_ioctl.h	xfs: introduce v5 inode group structure	2019-07-03 20:36:27 -07:00
xfs_iomap.c	xfs: remove XFS_TRANS_NOFS	2019-06-30 09:05:17 -07:00
xfs_iomap.h	xfs: fix SEEK_DATA for speculative COW fork preallocation	2019-02-21 07:55:07 -08:00
xfs_iops.c	xfs: fix missing ILOCK unlock when xfs_setattr_nonsize fails due to EDQUOT	2019-08-22 20:55:54 -07:00
xfs_iops.h	xfs: convert to SPDX license tags	2018-06-06 14:17:53 -07:00
xfs_itable.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_itable.h	xfs: specify AG in bulk req	2019-07-04 07:52:23 -07:00
xfs_iwalk.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_iwalk.h	xfs: specify AG in bulk req	2019-07-04 07:52:23 -07:00
xfs_linux.h	xfs: use bios directly to read and write the log recovery buffers	2019-06-28 19:27:26 -07:00
xfs_log_cil.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_log_priv.h	fs: xfs: xfs_log: Change return type from int to void	2019-07-03 08:21:58 -07:00
xfs_log_recover.c	xfs: add kmem_alloc_io()	2019-08-26 17:43:15 -07:00
xfs_log.c	xfs: add kmem_alloc_io()	2019-08-26 17:43:15 -07:00
xfs_log.h	fs: xfs: xfs_log: Change return type from int to void	2019-07-03 08:21:58 -07:00
xfs_message.c	xfs: remove unused header files	2019-06-28 19:30:43 -07:00
xfs_message.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
xfs_mount.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_mount.h	xfs: add kmem allocation trace points	2019-08-26 17:43:14 -07:00
xfs_mru_cache.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_mru_cache.h	xfs: convert to SPDX license tags	2018-06-06 14:17:53 -07:00
xfs_ondisk.h	xfs: wire up the v5 inumbers ioctl	2019-07-03 20:36:28 -07:00
xfs_pnfs.c	fs/xfs: Fix return code of xfs_break_leased_layouts()	2019-08-19 18:15:28 -07:00
xfs_pnfs.h	xfs: prepare xfs_break_layouts() for another layout type	2018-05-22 07:19:08 -07:00
xfs_pwork.c	xfs: poll waiting for quotacheck	2019-07-03 08:21:58 -07:00
xfs_pwork.h	xfs: poll waiting for quotacheck	2019-07-03 08:21:58 -07:00
xfs_qm_bhv.c	xfs: remove unused header files	2019-06-28 19:30:43 -07:00
xfs_qm_syscalls.c	xfs: remove unused header files	2019-06-28 19:30:43 -07:00
xfs_qm.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_qm.h	xfs: widen quota block counters to 64-bit integers	2019-04-23 08:36:23 -07:00
xfs_quota.h	xfs: kill the xfs_dqtrx_t typedef	2019-04-23 08:36:23 -07:00
xfs_quotaops.c	xfs: remove unused header files	2019-06-28 19:30:43 -07:00
xfs_refcount_item.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_refcount_item.h	xfs: merge xfs_cud_init into xfs_trans_get_cud	2019-06-28 19:27:35 -07:00
xfs_reflink.c	xfs: fix reflink source file racing with directio writes	2019-08-18 18:53:25 -07:00
xfs_reflink.h	xfs: don't pass iomap flags to xfs_reflink_allocate_cow	2019-02-25 09:04:31 -08:00
xfs_rmap_item.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_rmap_item.h	xfs: merge xfs_rud_init into xfs_trans_get_rud	2019-06-28 19:27:36 -07:00
xfs_rtalloc.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_rtalloc.h	xfs: convert to SPDX license tags	2018-06-06 14:17:53 -07:00
xfs_stats.c	xfs: remove unused header files	2019-06-28 19:30:43 -07:00
xfs_stats.h	xfs: use offsetof() in place of offset macros for __xfsstats	2018-10-18 17:21:39 +11:00
xfs_super.c	xfs: remove unused header files	2019-06-28 19:30:43 -07:00
xfs_super.h	xfs: include WARN, REPAIR build options in XFS_BUILD_OPTIONS	2019-06-12 08:37:40 -07:00
xfs_symlink.c	xfs: remove unused header files	2019-06-28 19:30:43 -07:00
xfs_symlink.h	xfs: convert to SPDX license tags	2018-06-06 14:17:53 -07:00
xfs_sysctl.c	xfs: remove unused header files	2019-06-28 19:30:43 -07:00
xfs_sysctl.h	xfs: multithreaded iwalk implementation	2019-07-03 07:33:26 -07:00
xfs_sysfs.c	xfs: multithreaded iwalk implementation	2019-07-03 07:33:26 -07:00
xfs_sysfs.h	xfs: convert to SPDX license tags	2018-06-06 14:17:53 -07:00
xfs_trace.c	xfs: remove unused header files	2019-06-28 19:30:43 -07:00
xfs_trace.h	xfs: add kmem_alloc_io()	2019-08-26 17:43:15 -07:00
xfs_trans_ail.c	xfs: remove the xfs_log_item_t typedef	2019-06-28 19:27:33 -07:00
xfs_trans_buf.c	xfs: remove unused header files	2019-06-28 19:30:43 -07:00
xfs_trans_dquot.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_trans_priv.h	xfs: don't use xfs_trans_free_items in the commit path	2019-06-28 19:27:31 -07:00
xfs_trans.c	fs: xfs: Remove KM_NOSLEEP and KM_SLEEP.	2019-08-26 12:06:22 -07:00
xfs_trans.h	xfs: merge xfs_trans_bmap.c into xfs_bmap_item.c	2019-06-28 19:29:42 -07:00
xfs_xattr.c	xfs: remove unused header files	2019-06-28 19:30:43 -07:00
xfs.h	xfs: remove b_last_holder & associated macros	2018-08-12 08:37:31 -07:00