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linux/fs/nfs
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Trond Myklebust f63955721a pNFS: Fix a hang in nfs4_evict_inode() 
We are not allowed to call pnfs_mark_matching_lsegs_return() without
also holding a reference to the layout header, since doing so could lead
to the reference count going to zero when we call
pnfs_layout_remove_lseg(). This again can lead to a hang when we get to
nfs4_evict_inode() and are unable to clear the layout pointer.

pnfs_layout_return_unused_byserver() is guilty of this behaviour, and
has been seen to trigger the refcount warning prior to a hang.

Fixes: b6d49ecd1081 ("NFSv4: Fix a pNFS layout related use-after-free race when freeing the inode")
Cc: stable@vger.kernel.org
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2023-10-18 14:41:52 -04:00
..
blocklayout
nfs/blocklayout: Use the passed in gfp flags
2023-08-24 13:24:15 -04:00
filelayout
pNFS/filelayout: treat GETDEVICEINFO errors as layout failure
2023-02-15 11:07:54 -05:00
flexfilelayout
NFS/pNFS: Report EINVAL errors from connect() to the server
2023-09-13 11:51:11 -04:00
cache_lib.c
NFS client updates for Linux 4.15
2017-11-17 14:18:00 -08:00
cache_lib.h
NFS client updates for Linux 4.15
2017-11-17 14:18:00 -08:00
callback_proc.c
nfs: convert to ctime accessor functions
2023-07-24 10:30:01 +02:00
callback_xdr.c
SUNRPC: Use per-CPU counters to tally server RPC counts
2023-02-20 09:20:32 -05:00
callback.c
SUNRPC: Add enum svc_auth_status
2023-08-29 17:45:22 -04:00
callback.h
NFSv4.1: Fix uninitialised variable in devicenotify
2022-01-06 14:00:20 -05:00
client.c
NFS/pNFS: Set the connect timeout for the pNFS flexfiles driver
2023-08-24 13:24:15 -04:00
delegation.c
nfs: use locks_inode_context helper
2022-11-30 05:08:10 -05:00
delegation.h
NFSv4: Fix delegation return in cases where we have to retry
2021-06-13 19:36:27 -04:00
dir.c
nfs: fix redundant readdir request after get eof
2023-08-24 13:24:15 -04:00
direct.c
NFS: More fixes for nfs_direct_write_reschedule_io()
2023-09-13 11:51:11 -04:00
dns_resolve.c
NFS: Move common includes outside ifdef
2023-08-24 13:24:15 -04:00
dns_resolve.h
NFS: Avoid memcpy() run-time warning for struct sockaddr overflows
2022-10-27 15:52:10 -04:00
export.c
nfsd: allow reaping files still under writeback
2023-04-26 09:04:59 -04:00
file.c
filemap: Fix errors in file.c
2023-08-24 13:24:15 -04:00
fs_context.c
NFS: Add an "xprtsec=" NFS mount option
2023-06-19 12:30:17 -04:00
fscache.c
mm, netfs, fscache: stop read optimisation when folio removed from pagecache
2023-08-18 10:12:13 -07:00
fscache.h
nfs: convert to ctime accessor functions
2023-07-24 10:30:01 +02:00
getroot.c
NFS: Remove the nfs4_label argument from nfs_setsecurity
2021-11-05 14:54:40 -04:00
inode.c
fs: pass the request_mask to generic_fillattr
2023-08-09 08:56:36 +02:00
internal.h
NFS/pNFS: Set the connect timeout for the pNFS flexfiles driver
2023-08-24 13:24:15 -04:00
io.c
NFS: Fix up incorrect documentation
2021-04-05 09:04:20 -04:00
iostat.h
NFS: Remove all NFSIOS_FSCACHE counters due to conversion to netfs API
2023-04-11 13:08:26 -04:00
Kconfig
NFS: Enable the READ_PLUS operation by default
2023-08-23 15:58:47 -04:00
Makefile
nfs: Convert to new fscache volume/cookie API
2022-01-10 11:53:25 +00:00
mount_clnt.c
NFS: Avoid memcpy() run-time warning for struct sockaddr overflows
2022-10-27 15:52:10 -04:00
namespace.c
fs: pass the request_mask to generic_fillattr
2023-08-09 08:56:36 +02:00
netns.h
NFS: Add sysfs support for per-container identifier
2019-07-06 14:54:49 -04:00
nfs2super.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
nfs2xdr.c
NFS: Guard against READDIR loop when entry names exceed MAXNAMELEN
2023-08-30 11:08:27 -04:00
nfs3_fs.h
fs: drop unused posix acl handlers
2023-03-06 09:57:12 +01:00
nfs3acl.c
Mainly singleton patches all over the place. Series of note are:
2023-04-27 19:57:00 -07:00
nfs3client.c
NFS/pNFS: Set the connect timeout for the pNFS flexfiles driver
2023-08-24 13:24:15 -04:00
nfs3proc.c
fs: rename current get acl method
2022-10-20 10:13:27 +02:00
nfs3super.c
fs: drop unused posix acl handlers
2023-03-06 09:57:12 +01:00
nfs3xdr.c
NFS: Guard against READDIR loop when entry names exceed MAXNAMELEN
2023-08-30 11:08:27 -04:00
nfs4_fs.h
fs: Pass argument to fcntl_setlease as int
2023-07-10 14:36:11 +02:00
nfs4client.c
NFSv4.1: fix pnfs MDS=DS session trunking
2023-09-13 11:51:11 -04:00
nfs4file.c
fs: Pass argument to fcntl_setlease as int
2023-07-10 14:36:11 +02:00
nfs4getroot.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
nfs4idmap.c
cred: Do not default to init_cred in prepare_kernel_cred()
2022-11-01 10:04:52 -07:00
nfs4idmap.h
…
nfs4namespace.c
NFS: Avoid memcpy() run-time warning for struct sockaddr overflows
2022-10-27 15:52:10 -04:00
nfs4proc.c
NFSv4: Fix a state manager thread deadlock regression
2023-09-27 15:16:40 -04:00
nfs4renewd.c
treewide: remove editor modelines and cruft
2021-05-07 00:26:34 -07:00
nfs4session.c
NFSv4: Sanity check the parameters in nfs41_update_target_slotid()
2021-11-07 09:23:14 -05:00
nfs4session.h
NFSv4: Sanity check the parameters in nfs41_update_target_slotid()
2021-11-07 09:23:14 -05:00
nfs4state.c
NFSv4: Fix a state manager thread deadlock regression
2023-09-27 15:16:40 -04:00
nfs4super.c
NFS: Adjust fs_context error logging
2021-01-10 13:32:39 -05:00
nfs4sysctl.c
nfs: simplify two-level sysctl registration for nfs4_cb_sysctls
2023-04-13 11:49:35 -07:00
nfs4trace.c
pNFS/flexfiles: Add tracing for layout errors
2020-01-15 10:54:33 -05:00
nfs4trace.h
nfs4trace: fix state manager flag printing
2023-02-14 15:43:57 -05:00
nfs4xdr.c
NFSv4.2: Fix a memory stomp in decode_attr_security_label
2022-11-27 22:09:59 -05:00
nfs42.h
NFSv4.2: Rework scratch handling for READ_PLUS (again)
2023-08-23 15:58:47 -04:00
nfs42proc.c
nfs42: client needs to strip file mode's suid/sgid bit after ALLOCATE op
2023-10-11 09:37:48 -04:00
nfs42xattr.c
NFSv4.2: fix wrong shrinker_id
2023-06-19 15:10:45 -04:00
nfs42xdr.c
NFSv4.2: Rework scratch handling for READ_PLUS (again)
2023-08-23 15:58:47 -04:00
nfs.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
nfsroot.c
NFS: Prefer strscpy over strlcpy calls
2023-05-22 12:34:41 -07:00
nfstrace.c
NFSv4: Catch and trace server filehandle encoding errors
2021-04-14 09:36:29 -04:00
nfstrace.h
NFS: Remove fscache specific trace points and NFS_INO_FSCACHE bit
2023-04-11 13:08:27 -04:00
pagelist.c
NFS: Convert buffered read paths to use netfs when fscache is enabled
2023-04-11 13:08:26 -04:00
pnfs_dev.c
NFSv4/pnfs: minor fix for cleanup path in nfs4_get_device_info
2023-08-24 13:24:15 -04:00
pnfs_nfs.c
pNFS: Fix assignment of xprtdata.cred
2023-08-30 14:31:31 -04:00
pnfs.c
pNFS: Fix a hang in nfs4_evict_inode()
2023-10-18 14:41:52 -04:00
pnfs.h
NFS: Convert buffered writes to use folios
2023-02-14 14:22:32 -05:00
proc.c
NFS: NFSv2/v3 clients should never be setting NFS_CAP_XATTR
2022-02-25 18:50:13 -05:00
read.c
NFSv4.2: Rework scratch handling for READ_PLUS (again)
2023-08-23 15:58:47 -04:00
super.c
NFS: switch back to using kill_anon_super
2023-08-31 12:47:16 +02:00
symlink.c
fs: Change the type of filler_t
2022-05-09 16:36:48 -04:00
sysctl.c
nfs: simplify two-level sysctl registration for nfs_cb_sysctls
2023-04-13 11:49:35 -07:00
sysfs.c
NFS: Fix sysfs server name memory leak
2023-08-19 10:26:29 -04:00
sysfs.h
NFS: Add sysfs links to sunrpc clients for nfs_clients
2023-06-19 15:04:13 -04:00
unlink.c
NFS: Fix a race in nfs_call_unlink()
2022-11-27 22:10:00 -05:00
write.c
NFS: Fix potential oops in nfs_inode_remove_request()
2023-10-11 11:09:56 -04:00