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114de38225
linux/fs/nfs
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Trond Myklebust 114de38225 NFS: Directory page cache pages need to be locked when read 
When a NFS directory page cache page is removed from the page cache,
its contents are freed through a call to nfs_readdir_clear_array().
To prevent the removal of the page cache entry until after we've
finished reading it, we must take the page lock.

Fixes: 11de3b11e0 ("NFS: Fix a memory leak in nfs_readdir")
Cc: stable@vger.kernel.org # v2.6.37+
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Reviewed-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2020-02-03 16:37:17 -05:00
..
blocklayout treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
filelayout pNFS/filelayout: enable LAYOUTGET on OPEN 2019-09-24 16:28:38 -04:00
flexfilelayout pNFS/flexfiles: Add tracing for layout errors 2020-01-15 10:54:33 -05:00
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 NFSv4: nfs4_callback_getattr() should ignore revoked delegations 2019-11-03 21:28:45 -05:00
callback_xdr.c NFS4: Report callback authentication errors 2020-01-15 10:54:31 -05:00
callback.c SUNRPC: Cache the process user cred in the RPC server listener 2019-04-24 09:46:35 -04:00
callback.h NFSv4: NFSv4 callbacks also support 64-bit timestamps 2019-11-03 21:28:44 -05:00
client.c NFS: allow deprecation of NFS UDP protocol 2020-01-24 16:51:13 -05:00
delegation.c NFSv4: Limit the total number of cached delegations 2020-02-03 16:35:07 -05:00
delegation.h NFSv4: Try to return the delegation immediately when marked for return on close 2020-02-03 16:35:07 -05:00
dir.c NFS: Directory page cache pages need to be locked when read 2020-02-03 16:37:17 -05:00
direct.c NFS: Fix nfs_direct_write_reschedule_io() 2020-01-15 10:54:33 -05:00
dns_resolve.c NFS: Replace various occurrences of kstrndup() with kmemdup_nul() 2020-02-03 16:35:07 -05:00
dns_resolve.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
export.c NFS: Add a tracepoint in nfs_fh_to_dentry() 2019-11-03 21:28:46 -05:00
file.c NFS: Fix up fsync() when the server rebooted 2020-01-15 10:54:32 -05:00
fs_context.c nfs: Return EINVAL rather than ERANGE for mount parse errors 2020-01-24 16:51:13 -05:00
fscache-index.c nfs: fscache: use timespec64 in inode auxdata 2020-01-15 10:54:30 -05:00
fscache.c nfs: fscache: use timespec64 in inode auxdata 2020-01-15 10:54:30 -05:00
fscache.h nfs: fscache: use timespec64 in inode auxdata 2020-01-15 10:54:30 -05:00
getroot.c NFS: Attach supplementary error information to fs_context. 2020-01-15 10:15:17 -05:00
inode.c NFS: nfs_find_open_context() should use cred_fscmp() 2020-02-03 16:35:07 -05:00
internal.h NFS: Add softreval behaviour to nfs_lookup_revalidate() 2020-01-24 16:51:13 -05:00
io.c NFS: Fix up documentation warnings 2019-02-20 15:14:21 -05:00
iostat.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig NFS: allow deprecation of NFS UDP protocol 2020-01-24 16:51:13 -05:00
Makefile NFS: Move mount parameterisation bits into their own file 2020-01-15 10:15:17 -05:00
mount_clnt.c NFS: remove unused macros 2020-02-03 10:43:06 -05:00
namespace.c NFS: Add softreval behaviour to nfs_lookup_revalidate() 2020-01-24 16:51:13 -05:00
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: remove timespec from xdr_encode_nfstime 2020-01-15 10:54:30 -05:00
nfs3_fs.h NFS: Additional refactoring for fs_context conversion 2020-01-15 10:15:17 -05:00
nfs3acl.c nfs: fix xfstest generic/099 failed on nfsv3 2019-02-20 17:33:55 -05:00
nfs3client.c NFS: Additional refactoring for fs_context conversion 2020-01-15 10:15:17 -05:00
nfs3proc.c NFS: Add softreval behaviour to nfs_lookup_revalidate() 2020-01-24 16:51:13 -05:00
nfs3super.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
nfs3xdr.c NFS/pnfs: Fix pnfs_generic_prepare_to_resend_writes() 2020-01-15 10:54:32 -05:00
nfs4_fs.h NFS: Add softreval behaviour to nfs_lookup_revalidate() 2020-01-24 16:51:13 -05:00
nfs4client.c NFS: Additional refactoring for fs_context conversion 2020-01-15 10:15:17 -05:00
nfs4file.c NFS: Add fs_context support. 2020-01-15 10:15:17 -05:00
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 Revert "Merge tag 'keys-acl-20190703' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs" 2019-07-10 18:43:43 -07:00
nfs4idmap.h NFS: Move nfs_idmap.h into fs/nfs/ 2015-04-23 15:16:14 -04:00
nfs4namespace.c NFS: Replace various occurrences of kstrndup() with kmemdup_nul() 2020-02-03 16:35:07 -05:00
nfs4proc.c NFS: Add softreval behaviour to nfs_lookup_revalidate() 2020-01-24 16:51:13 -05:00
nfs4renewd.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
nfs4session.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
nfs4session.h NFSv4.1: Bump the default callback session slot count to 16 2019-03-02 16:25:26 -05:00
nfs4state.c NFSv4: Try to return the delegation immediately when marked for return on close 2020-02-03 16:35:07 -05:00
nfs4super.c NFS: Attach supplementary error information to fs_context. 2020-01-15 10:15:17 -05:00
nfs4sysctl.c nfs: Do not convert nfs_idmap_cache_timeout to jiffies 2018-01-18 15:10:47 -05:00
nfs4trace.c pNFS/flexfiles: Add tracing for layout errors 2020-01-15 10:54:33 -05:00
nfs4trace.h pNFS/flexfiles: Add tracing for layout errors 2020-01-15 10:54:33 -05:00
nfs4xdr.c NFS/pnfs: Fix pnfs_generic_prepare_to_resend_writes() 2020-01-15 10:54:32 -05:00
nfs42.h NFS based on file size issue sync copy or fallback to generic copy offload 2019-10-09 12:06:22 -04:00
nfs42proc.c NFSv4.x recover from pre-mature loss of openstateid 2020-01-15 10:54:33 -05:00
nfs42xdr.c NFS: add ca_source_server<> to COPY 2019-10-09 12:05:49 -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 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfstrace.c NFS: Add trace events to report non-zero NFS status codes 2019-02-13 12:03:21 -05:00
nfstrace.h NFS: Improve tracing of permission calls 2020-01-15 10:54:33 -05:00
pagelist.c NFS: Fix initialisation of I/O result struct in nfs_pgio_rpcsetup 2019-08-19 08:56:04 -04:00
pnfs_dev.c NFS/flexfiles: Speed up read failover when DSes are down 2019-03-01 22:37:38 -05:00
pnfs_nfs.c NFS/pnfs: Fix pnfs_generic_prepare_to_resend_writes() 2020-01-15 10:54:32 -05:00
pnfs.c NFSv4: pnfs_roc() must use cred_fscmp() to compare creds 2020-02-03 16:35:07 -05:00
pnfs.h pNFS/flexfiles: Record resend attempts on I/O failure 2020-01-15 10:54:32 -05:00
proc.c NFS: Add softreval behaviour to nfs_lookup_revalidate() 2020-01-24 16:51:13 -05:00
read.c NFS: When resending after a short write, reset the reply count to zero 2020-01-15 10:54:33 -05:00
super.c NFS: Add mount option 'softreval' 2020-01-15 10:54:33 -05:00
symlink.c nfs: pass the correct prototype to read_cache_page 2019-05-09 16:26:57 -04:00
sysctl.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sysfs.c fs: nfs: sysfs: Remove NULL check before kfree 2019-11-18 10:38:04 +01:00
sysfs.h NFS: Add sysfs support for per-container identifier 2019-07-06 14:54:49 -04:00
unlink.c fsnotify: move fsnotify_nameremove() hook out of d_delete() 2019-06-20 14:47:44 +02:00
write.c NFS: When resending after a short write, reset the reply count to zero 2020-01-15 10:54:33 -05:00