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linux/fs/nfs
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Trond Myklebust 51fd2eb52c NFSv4: Fix races in the legacy idmapper upcall 
nfs_idmap_instantiate() will cause the process that is waiting in
request_key_with_auxdata() to wake up and exit. If there is a second
process waiting for the idmap->idmap_mutex, then it may wake up and
start a new call to request_key_with_auxdata(). If the call to
idmap_pipe_downcall() from the first process has not yet finished
calling nfs_idmap_complete_pipe_upcall_locked(), then we may end up
triggering the WARN_ON_ONCE() in nfs_idmap_prepare_pipe_upcall().

The fix is to ensure that we clear idmap->idmap_upcall_data before
calling nfs_idmap_instantiate().

Fixes: e9ab41b620e4 ("NFSv4: Clean up the legacy idmapper upcall")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-13 17:46:52 -04:00
..
blocklayout
nfs/blocklayout: refactor block device opening
2022-07-12 10:05:21 -04:00
filelayout
pNFS/files: Handle RDMA connection errors correctly
2022-07-10 19:00:53 -04:00
flexfilelayout
NFS: Allow setting rsize / wsize to a multiple of PAGE_SIZE
2022-07-12 10:53:10 -04:00
cache_lib.c
…
cache_lib.h
…
callback_proc.c
pNFS: Avoid a live lock condition in pnfs_update_layout()
2022-06-06 11:53:55 -04:00
callback_xdr.c
NFS: remove unneeded check in decode_devicenotify_args()
2022-03-13 12:59:34 -04:00
callback.c
NFSD: Move svc_serv_ops::svo_function into struct svc_serv
2022-02-28 10:26:40 -05:00
callback.h
NFSv4.1: Fix uninitialised variable in devicenotify
2022-01-06 14:00:20 -05:00
client.c
NFS: Allow setting rsize / wsize to a multiple of PAGE_SIZE
2022-07-12 10:53:10 -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: Replace kmap() with kmap_local_page()
2022-07-12 10:06:18 -04:00
direct.c
nfs: rename nfs_direct_IO and use as ->swap_rw
2022-05-09 18:20:48 -07:00
dns_resolve.c
NFS: remove duplicate headers
2020-05-27 10:10:12 -04:00
dns_resolve.h
…
export.c
nfs: block notification on fs with its own ->lock
2022-01-08 14:42:01 -05:00
file.c
NFS: remove redundant code in nfs_file_write()
2022-07-12 10:05:24 -04:00
fs_context.c
nfs: fix port value parsing
2022-07-12 10:53:10 -04:00
fscache.c
NFS: Pass i_size to fscache_unuse_cookie() when a file is released
2022-05-17 15:39:45 -04:00
fscache.h
nfs: Convert to release_folio
2022-05-09 23:12:33 -04:00
getroot.c
NFS: Remove the nfs4_label argument from nfs_setsecurity
2021-11-05 14:54:40 -04:00
inode.c
NFS client bugfixes for Linux 5.18
2022-04-08 07:39:17 -10:00
internal.h
NFS: Allow setting rsize / wsize to a multiple of PAGE_SIZE
2022-07-12 10:53:10 -04:00
io.c
NFS: Fix up incorrect documentation
2021-04-05 09:04:20 -04:00
iostat.h
…
Kconfig
NFS: Replace readdir's use of xxhash() with hash_64()
2022-04-07 16:19:47 -04:00
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
Revert "pNFS: nfs3_set_ds_client should set NFS_CS_NOPING"
2022-07-10 19:00:53 -04:00
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: Allow setting rsize / wsize to a multiple of PAGE_SIZE
2022-07-12 10:53:10 -04:00
nfs4file.c
NFSv4: Add FMODE_CAN_ODIRECT after successful open of a NFS4.x file
2022-06-15 15:03:12 -04:00
nfs4getroot.c
…
nfs4idmap.c
NFSv4: Fix races in the legacy idmapper upcall
2022-07-13 17:46:52 -04:00
nfs4idmap.h
…
nfs4namespace.c
NFSv4: Fix free of uninitialized nfs4_label on referral lookup.
2022-05-31 17:09:24 -04:00
nfs4proc.c
NFSv4.1: Handle NFS4ERR_DELAY replies to OP_SEQUENCE correctly
2022-07-12 09:54:04 -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
NFS: restore module put when manager exits.
2022-06-30 16:13:00 -04:00
nfs4super.c
NFS: Adjust fs_context error logging
2021-01-10 13:32:39 -05:00
nfs4sysctl.c
…
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
NFSv4: Fix free of uninitialized nfs4_label on referral lookup.
2022-05-31 17:09:24 -04:00
nfs42.h
NFSv4.2: add the extended attribute proc functions.
2020-07-13 17:52:45 -04:00
nfs42proc.c
NFS: replace usage of found with dedicated list iterator variable
2022-03-24 12:06:07 -04:00
nfs42xattr.c
NFSv4.2: Fix missing removal of SLAB_ACCOUNT on kmem_cache allocation
2022-04-07 16:20:00 -04:00
nfs42xdr.c
NFSv42: Don't fail clone() unless the OP_CLONE operation failed
2021-11-17 14:08:23 -05:00
nfs.h
…
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
NFSv4.1 mark qualified async operations as MOVEABLE tasks
2022-05-31 17:09:30 -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: nfsiod should not block forever in mempool_alloc()
2022-03-22 15:52:56 -04:00
pnfs.c
pNFS: Avoid a live lock condition in pnfs_update_layout()
2022-06-06 11:53:55 -04:00
pnfs.h
pNFS: Avoid a live lock condition in pnfs_update_layout()
2022-06-06 11:53:55 -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: Convert nfs to read_folio
2022-05-09 16:21:46 -04:00
super.c
nfs: Convert to new fscache volume/cookie API
2022-01-10 11:53:25 +00:00
symlink.c
fs: Change the type of filler_t
2022-05-09 16:36:48 -04:00
sysctl.c
…
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
NFSv4.1 mark qualified async operations as MOVEABLE tasks
2022-05-31 17:09:30 -04:00
write.c
NFSv4.1 mark qualified async operations as MOVEABLE tasks
2022-05-31 17:09:30 -04:00