Highlights include:
Stable fixes:
- NFSv42: Fix pagecache invalidation after COPY/CLONE
Bugfixes:
- NFSv42: Don't fail clone() just because the server failed to return
post-op attributes
- SUNRPC: use different lockdep keys for INET6 and LOCAL
- NFSv4.1: handle NFS4ERR_NOSPC from CREATE_SESSION
- SUNRPC: fix header include guard in trace header
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Merge tag 'nfs-for-5.16-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client fixes from Trond Myklebust:
"Highlights include:
Stable fixes:
- NFSv42: Fix pagecache invalidation after COPY/CLONE
Bugfixes:
- NFSv42: Don't fail clone() just because the server failed to return
post-op attributes
- SUNRPC: use different lockdep keys for INET6 and LOCAL
- NFSv4.1: handle NFS4ERR_NOSPC from CREATE_SESSION
- SUNRPC: fix header include guard in trace header"
* tag 'nfs-for-5.16-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
SUNRPC: use different lock keys for INET6 and LOCAL
sunrpc: fix header include guard in trace header
NFSv4.1: handle NFS4ERR_NOSPC by CREATE_SESSION
NFSv42: Fix pagecache invalidation after COPY/CLONE
NFS: Add a tracepoint to show the results of nfs_set_cache_invalid()
NFSv42: Don't fail clone() unless the OP_CLONE operation failed
When the client receives ERR_NOSPC on reply to CREATE_SESSION
it leads to a client hanging in nfs_wait_client_init_complete().
Instead, complete and fail the client initiation with an EIO
error which allows for the mount command to fail instead of
hanging.
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
The mechanism in use to allow the client to see the results of COPY/CLONE
is to drop those pages from the pagecache. This forces the client to read
those pages once more from the server. However, truncate_pagecache_range()
zeros out partial pages instead of dropping them. Let us instead use
invalidate_inode_pages2_range() with full-page offsets to ensure the client
properly sees the results of COPY/CLONE operations.
Cc: <stable@vger.kernel.org> # v4.7+
Fixes: 2e72448b07 ("NFS: Add COPY nfs operation")
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This provides some insight into the client's invalidation behavior to show
both when the client uses the helper, and the results of calling the
helper which can vary depending on how the helper is called.
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
The failure to retrieve post-op attributes has no bearing on whether or
not the clone operation itself was successful. We must therefore ignore
the return value of decode_getfattr() when looking at the success or
failure of nfs4_xdr_dec_clone().
Fixes: 36022770de ("nfs42: add CLONE xdr functions")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
support for a filehandle format deprecated 20 years ago, and further
xdr-related cleanup from Chuck.
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Merge tag 'nfsd-5.16' of git://linux-nfs.org/~bfields/linux
Pull nfsd updates from Bruce Fields:
"A slow cycle for nfsd: mainly cleanup, including Neil's patch dropping
support for a filehandle format deprecated 20 years ago, and further
xdr-related cleanup from Chuck"
* tag 'nfsd-5.16' of git://linux-nfs.org/~bfields/linux: (26 commits)
nfsd4: remove obselete comment
nfsd: document server-to-server-copy parameters
NFSD:fix boolreturn.cocci warning
nfsd: update create verifier comment
SUNRPC: Change return value type of .pc_encode
SUNRPC: Replace the "__be32 *p" parameter to .pc_encode
NFSD: Save location of NFSv4 COMPOUND status
SUNRPC: Change return value type of .pc_decode
SUNRPC: Replace the "__be32 *p" parameter to .pc_decode
SUNRPC: De-duplicate .pc_release() call sites
SUNRPC: Simplify the SVC dispatch code path
SUNRPC: Capture value of xdr_buf::page_base
SUNRPC: Add trace event when alloc_pages_bulk() makes no progress
svcrdma: Split svcrmda_wc_{read,write} tracepoints
svcrdma: Split the svcrdma_wc_send() tracepoint
svcrdma: Split the svcrdma_wc_receive() tracepoint
NFSD: Have legacy NFSD WRITE decoders use xdr_stream_subsegment()
SUNRPC: xdr_stream_subsegment() must handle non-zero page_bases
NFSD: Initialize pointer ni with NULL and not plain integer 0
NFSD: simplify struct nfsfh
...
Highlights include:
Features:
- NFSv4.1 can always retrieve and cache the ACCESS mode on OPEN
- Optimisations for READDIR and the 'ls -l' style workload
- Further replacements of dprintk() with tracepoints and other tracing
improvements
- Ensure we re-probe NFSv4 server capabilities when the user does a
"mount -o remount"
Bugfixes:
- Fix an Oops in pnfs_mark_request_commit()
- Fix up deadlocks in the commit code
- Fix regressions in NFSv2/v3 attribute revalidation due to the
change_attr_type optimisations
- Fix some dentry verifier races
- Fix some missing dentry verifier settings
- Fix a performance regression in nfs_set_open_stateid_locked()
- SUNRPC was sending multiple SYN calls when re-establishing a TCP
connection.
- Fix multiple NFSv4 issues due to missing sanity checking of server
return values
- Fix a potential Oops when FREE_STATEID races with an unmount
Cleanups:
- Clean up the labelled NFS code
- Remove unused header <linux/pnfs_osd_xdr.h>
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Merge tag 'nfs-for-5.16-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client updates from Trond Myklebust:
"Highlights include:
Features:
- NFSv4.1 can always retrieve and cache the ACCESS mode on OPEN
- Optimisations for READDIR and the 'ls -l' style workload
- Further replacements of dprintk() with tracepoints and other
tracing improvements
- Ensure we re-probe NFSv4 server capabilities when the user does a
"mount -o remount"
Bugfixes:
- Fix an Oops in pnfs_mark_request_commit()
- Fix up deadlocks in the commit code
- Fix regressions in NFSv2/v3 attribute revalidation due to the
change_attr_type optimisations
- Fix some dentry verifier races
- Fix some missing dentry verifier settings
- Fix a performance regression in nfs_set_open_stateid_locked()
- SUNRPC was sending multiple SYN calls when re-establishing a TCP
connection.
- Fix multiple NFSv4 issues due to missing sanity checking of server
return values
- Fix a potential Oops when FREE_STATEID races with an unmount
Cleanups:
- Clean up the labelled NFS code
- Remove unused header <linux/pnfs_osd_xdr.h>"
* tag 'nfs-for-5.16-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (84 commits)
NFSv4: Sanity check the parameters in nfs41_update_target_slotid()
NFS: Remove the nfs4_label argument from decode_getattr_*() functions
NFS: Remove the nfs4_label argument from nfs_setsecurity
NFS: Remove the nfs4_label argument from nfs_fhget()
NFS: Remove the nfs4_label argument from nfs_add_or_obtain()
NFS: Remove the nfs4_label argument from nfs_instantiate()
NFS: Remove the nfs4_label from the nfs_setattrres
NFS: Remove the nfs4_label from the nfs4_getattr_res
NFS: Remove the f_label from the nfs4_opendata and nfs_openres
NFS: Remove the nfs4_label from the nfs4_lookupp_res struct
NFS: Remove the label from the nfs4_lookup_res struct
NFS: Remove the nfs4_label from the nfs4_link_res struct
NFS: Remove the nfs4_label from the nfs4_create_res struct
NFS: Remove the nfs4_label from the nfs_entry struct
NFS: Create a new nfs_alloc_fattr_with_label() function
NFS: Always initialise fattr->label in nfs_fattr_alloc()
NFSv4.2: alloc_file_pseudo() takes an open flag, not an f_mode
NFS: Don't allocate nfs_fattr on the stack in __nfs42_ssc_open()
NFSv4: Remove unnecessary 'minor version' check
NFSv4: Fix potential Oops in decode_op_map()
...
Ensure that the values supplied by the server do not exceed the size of
the largest allowed slot table.
Reported-by: <rtm@csail.mit.edu>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Wa can check if the fattr has an allocated label when needed
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Pull the label from the fattr instead.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
And usethe fattr's label field instead. I also adjust function calls to
remove labels along the way.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Again, use the fattr's label field instead.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Instead, use the label embedded in the attached fattr.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
And instead allocate the fattr using nfs_alloc_fattr_with_label()
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
For creating fattrs with the label field already allocated for us. I
also update nfs_free_fattr() to free the label in the end.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
We're about to add a check in nfs_free_fattr() for whether or not the
label is non-zero.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
The return value of xdr_inline_decode() is not being checked, leading to
a potential Oops. Just replace the open coded array decode with the
generic XDR version.
Reported-by: <rtm@csail.mit.edu>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
The server is supposed to return the same tag that the client sends in
the outgoing RPC call, but we should still sanity check the length just
in case.
Reported-by: <rtm@csail.mit.edu>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If fhandle is NULL or fattr is NULL, then 'error' is uninitialised.
Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Add a tracepoint to COPY_NOTIFY operation.
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Add a tracepoint to the CB_OFFLOAD operation.
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Add a tracepoint to the CLONE operation.
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Add a tracepoint to the COPY operation.
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Add a tracepoint to the FALLOCATE/DEALLOCATE operations.
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Add a tracepoint to the SEEK operation.
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
During umount, the session slot tables are freed. If there are
outstanding FREE_STATEID tasks, a use-after-free and slab corruption can
occur when rpc_exit_task calls rpc_call_done -> nfs41_sequence_done ->
nfs4_sequence_process/nfs41_sequence_free_slot.
Prevent that from happening by taking a reference on the nfs_client in
nfs41_free_stateid and putting it in nfs41_free_stateid_release.
Signed-off-by: Scott Mayhew <smayhew@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Refactor: surface useful show_ macros so they can be shared between
the client and server trace code.
Additional clean up:
- Housekeeping: ensure the correct #include files are pulled in
and add proper TRACE_DEFINE_ENUM where they are missing
- Use a consistent naming scheme for the helpers
- Store values to be displayed symbolically as unsigned long, as
that is the type that the __print_yada() functions take
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Refactor: Surface useful show_ macros for use by other trace
subsystems.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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Merge tag 'selinux-pr-20211101' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull selinux updates from Paul Moore:
- Add LSM/SELinux/Smack controls and auditing for io-uring.
As usual, the individual commit descriptions have more detail, but we
were basically missing two things which we're adding here:
+ establishment of a proper audit context so that auditing of
io-uring ops works similarly to how it does for syscalls (with
some io-uring additions because io-uring ops are *not* syscalls)
+ additional LSM hooks to enable access control points for some of
the more unusual io-uring features, e.g. credential overrides.
The additional audit callouts and LSM hooks were done in conjunction
with the io-uring folks, based on conversations and RFC patches
earlier in the year.
- Fixup the binder credential handling so that the proper credentials
are used in the LSM hooks; the commit description and the code
comment which is removed in these patches are helpful to understand
the background and why this is the proper fix.
- Enable SELinux genfscon policy support for securityfs, allowing
improved SELinux filesystem labeling for other subsystems which make
use of securityfs, e.g. IMA.
* tag 'selinux-pr-20211101' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
security: Return xattr name from security_dentry_init_security()
selinux: fix a sock regression in selinux_ip_postroute_compat()
binder: use cred instead of task for getsecid
binder: use cred instead of task for selinux checks
binder: use euid from cred instead of using task
LSM: Avoid warnings about potentially unused hook variables
selinux: fix all of the W=1 build warnings
selinux: make better use of the nf_hook_state passed to the NF hooks
selinux: fix race condition when computing ocontext SIDs
selinux: remove unneeded ipv6 hook wrappers
selinux: remove the SELinux lockdown implementation
selinux: enable genfscon labeling for securityfs
Smack: Brutalist io_uring support
selinux: add support for the io_uring access controls
lsm,io_uring: add LSM hooks to io_uring
io_uring: convert io_uring to the secure anon inode interface
fs: add anon_inode_getfile_secure() similar to anon_inode_getfd_secure()
audit: add filtering for io_uring records
audit,io_uring,io-wq: add some basic audit support to io_uring
audit: prepare audit_context for use in calling contexts beyond syscalls
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Merge tag 'for-5.16/ki_complete-2021-10-29' of git://git.kernel.dk/linux-block
Pull kiocb->ki_complete() cleanup from Jens Axboe:
"This removes the res2 argument from kiocb->ki_complete().
Only the USB gadget code used it, everybody else passes 0. The USB
guys checked the user gadget code they could find, and everybody just
uses res as expected for the async interface"
* tag 'for-5.16/ki_complete-2021-10-29' of git://git.kernel.dk/linux-block:
fs: get rid of the res2 iocb->ki_complete argument
usb: remove res2 argument from gadget code completions
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Merge tag 'for-5.16/bdev-size-2021-10-29' of git://git.kernel.dk/linux-block
Pull bdev size cleanups from Jens Axboe:
"Clean up the bdev size handling with new bdev_nr_bytes() helper"
* tag 'for-5.16/bdev-size-2021-10-29' of git://git.kernel.dk/linux-block: (34 commits)
partitions/ibm: use bdev_nr_sectors instead of open coding it
partitions/efi: use bdev_nr_bytes instead of open coding it
block/ioctl: use bdev_nr_sectors and bdev_nr_bytes
block: cache inode size in bdev
udf: use sb_bdev_nr_blocks
reiserfs: use sb_bdev_nr_blocks
ntfs: use sb_bdev_nr_blocks
jfs: use sb_bdev_nr_blocks
ext4: use sb_bdev_nr_blocks
block: add a sb_bdev_nr_blocks helper
block: use bdev_nr_bytes instead of open coding it in blkdev_fallocate
squashfs: use bdev_nr_bytes instead of open coding it
reiserfs: use bdev_nr_bytes instead of open coding it
pstore/blk: use bdev_nr_bytes instead of open coding it
ntfs3: use bdev_nr_bytes instead of open coding it
nilfs2: use bdev_nr_bytes instead of open coding it
nfs/blocklayout: use bdev_nr_bytes instead of open coding it
jfs: use bdev_nr_bytes instead of open coding it
hfsplus: use bdev_nr_sectors instead of open coding it
hfs: use bdev_nr_sectors instead of open coding it
...
If we already hold open state on the client, yet the server gives us a
completely different stateid to the one we already hold, then we
currently treat it as if it were an out-of-sequence update, and wait for
5 seconds for other updates to come in.
This commit fixes the behaviour so that we immediately start processing
of the new stateid, and then leave it to the call to
nfs4_test_and_free_stateid() to decide what to do with the old stateid.
Fixes: b4868b44c5 ("NFSv4: Wait for stateid updates after CLOSE/OPEN_DOWNGRADE")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
The second argument was only used by the USB gadget code, yet everyone
pays the overhead of passing a zero to be passed into aio, where it
ends up being part of the aio res2 value.
Now that everybody is passing in zero, kill off the extra argument.
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Remove a redundant call in nfs_updatepage(). nfs_writepage_setup() will
have already called nfs_mark_request_dirty() on success.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
All the callers are now in client.c so we can remove the
EXPORT_SYMBOL_GPL() and make it static.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This lets us update the server's attributes when the user does a "mount
-o remount" on the filesystem.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Clean up. There are a few places where we want to probe the server, but
don't actually care about the fsinfo result. Change these to use
nfs_probe_server(), which handles the fattr allocation for us.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
And rename it to nfs_probe_server(). I also change it to take the nfs_fh
as an argument so callers can choose what filehandle to probe.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
