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Trond Myklebust 648a4548d6 NFS: Don't deadlock when cookie hashes collide 
In the very rare case where the readdir reply contains multiple cookies
that map to the same hash value, we can end up deadlocking waiting for a
page lock that we already hold. In this case we should fail the page
lock by using grab_cache_page_nowait().

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-03-22 09:14:39 -04:00
..
blocklayout
nfs/blocklayout: use bdev_nr_bytes instead of open coding it
2021-10-18 14:43:23 -06:00
filelayout
nfs41: pnfs: filelayout: Replace one-element array with flexible-array member
2022-01-06 14:00:20 -05:00
flexfilelayout
NFSv4/flexfiles: Convert GFP_NOFS to GFP_KERNEL
2022-02-25 18:50:12 -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
NFSv4.2/copyoffload: Convert GFP_NOFS to GFP_KERNEL
2022-02-25 18:50:12 -05:00
callback_xdr.c
NFS: remove unneeded check in decode_devicenotify_args()
2022-03-13 12:59:34 -04:00
callback.c
Merge branch 'signal-for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2022-01-17 05:49:30 +02:00
callback.h
NFSv4.1: Fix uninitialised variable in devicenotify
2022-01-06 14:00:20 -05:00
client.c
NFSv4.1 provide mount option to toggle trunking discovery
2022-03-21 10:36:49 -04:00
delegation.c
NFSv4: Charge NFSv4 open state trackers to kmemcg
2022-02-25 18:50:12 -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: Don't deadlock when cookie hashes collide
2022-03-22 09:14:39 -04:00
direct.c
NFS: swap-out must always use STABLE writes.
2022-03-13 12:59:35 -04:00
dns_resolve.c
NFS: remove duplicate headers
2020-05-27 10:10:12 -04:00
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: block notification on fs with its own ->lock
2022-01-08 14:42:01 -05:00
file.c
NFS: swap IO handling is slightly different for O_DIRECT IO
2022-03-13 12:59:35 -04:00
fs_context.c
NFSv4.1 provide mount option to toggle trunking discovery
2022-03-21 10:36:49 -04:00
fscache.c
NFS: Remove remaining dfprintks related to fscache and remove NFSDBG_FSCACHE
2022-03-13 12:59:35 -04:00
fscache.h
NFS: Rename fscache read and write pages functions
2022-03-13 12:59:35 -04:00
getroot.c
NFS: Remove the nfs4_label argument from nfs_setsecurity
2021-11-05 14:54:40 -04:00
inode.c
NFS: Don't ask for readdirplus unless it can help nfs_getattr()
2022-03-02 08:43:38 -05:00
internal.h
NFS: Improve heuristic for readdirplus
2022-03-02 08:43:38 -05:00
io.c
NFS: Fix up incorrect documentation
2021-04-05 09:04:20 -04:00
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: Convert readdir page cache to use a cookie based index
2022-03-02 08:43:39 -05:00
Makefile
nfs: Convert to new fscache volume/cookie API
2022-01-10 11:53:25 +00:00
mount_clnt.c
nfs: hornor timeo and retrans option when mounting NFSv3
2021-04-05 09:04:21 -04:00
namespace.c
NFS: Remove the label from the nfs4_lookup_res struct
2021-11-05 14:54:39 -04:00
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: Optimise away the previous cookie field
2022-03-02 08:43:39 -05:00
nfs3_fs.h
vfs: add rcu argument to ->get_acl() callback
2021-08-18 22:08:24 +02:00
nfs3acl.c
vfs: add rcu argument to ->get_acl() callback
2021-08-18 22:08:24 +02:00
nfs3client.c
NFS: Additional refactoring for fs_context conversion
2020-01-15 10:15:17 -05:00
nfs3proc.c
NFS: pass cred explicitly for access tests
2022-01-06 14:00:20 -05:00
nfs3super.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
nfs3xdr.c
NFS: Optimise away the previous cookie field
2022-03-02 08:43:39 -05:00
nfs4_fs.h
NFSv4: keep state manager thread active if swap is enabled
2022-03-13 12:59:35 -04:00
nfs4client.c
nfs: nfs4clinet: check the return value of kstrdup()
2022-01-06 14:00:20 -05:00
nfs4file.c
NFSv4.2/copyoffload: Convert GFP_NOFS to GFP_KERNEL
2022-02-25 18:50:12 -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
Fix user namespace leak
2021-10-20 18:09:54 -04:00
nfs4idmap.h
…
nfs4namespace.c
NFSv4 handle port presence in fs_location server string
2022-01-13 09:36:58 -05:00
nfs4proc.c
NFSv4: keep state manager thread active if swap is enabled
2022-03-13 12:59:35 -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: keep state manager thread active if swap is enabled
2022-03-13 12:59:35 -04:00
nfs4super.c
NFS: Adjust fs_context error logging
2021-01-10 13:32:39 -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
NFSv4.2 add tracepoint to OFFLOAD_CANCEL
2021-11-04 19:43:30 -04:00
nfs4xdr.c
NFS: Optimise away the previous cookie field
2022-03-02 08:43:39 -05:00
nfs42.h
NFSv4.2: add the extended attribute proc functions.
2020-07-13 17:52:45 -04:00
nfs42proc.c
NFSv4.2/copyoffload: Convert GFP_NOFS to GFP_KERNEL
2022-02-25 18:50:12 -05:00
nfs42xattr.c
NFSv4.2: Fix up an invalid combination of memory allocation flags
2022-02-25 18:50:12 -05:00
nfs42xdr.c
NFSv42: Don't fail clone() unless the OP_CLONE operation failed
2021-11-17 14:08:23 -05:00
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
nfsroot: Default mount option should ask for built-in NFS version
2020-11-02 10:29:03 -05:00
nfstrace.c
NFSv4: Catch and trace server filehandle encoding errors
2021-04-14 09:36:29 -04:00
nfstrace.h
NFS: Replace dfprintks with tracepoints in fscache read and write page functions
2022-03-13 12:59:35 -04:00
pagelist.c
SUNRPC: Trace calls to .rpc_call_done
2021-10-20 18:09:54 -04:00
pnfs_dev.c
NFSv4/pnfs: Add tracing for the deviceid cache
2020-12-16 17:25:24 -05:00
pnfs_nfs.c
NFS: Fix up commit deadlocks
2021-10-20 18:09:45 -04:00
pnfs.c
NFS: Convert GFP_NOFS to GFP_KERNEL
2022-02-25 18:50:12 -05:00
pnfs.h
NFS: Move NFS protocol display macros to global header
2021-11-02 12:31:23 -04:00
proc.c
NFS: NFSv2/v3 clients should never be setting NFS_CAP_XATTR
2022-02-25 18:50:13 -05:00
read.c
NFS: discard NFS_RPC_SWAPFLAGS and RPC_TASK_ROOTCREDS
2022-03-13 12:59:35 -04:00
super.c
nfs: Convert to new fscache volume/cookie API
2022-01-10 11:53:25 +00:00
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
Revert "NFSv4: use unique client identifiers in network namespaces"
2022-02-28 10:09:23 -05:00
sysfs.h
NFSv4: Fix up RCU annotations for struct nfs_netns_client
2020-10-15 13:31:08 -04:00
unlink.c
NFS: Fix open coded versions of nfs_set_cache_invalid()
2021-03-08 16:13:55 -05:00
write.c
SUNRPC: improve 'swap' handling: scheduling and PF_MEMALLOC
2022-03-13 12:59:35 -04:00