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debf16f0c6
linux/fs/nfsd
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NeilBrown debf16f0c6 NFSD: use explicit lock/unlock for directory ops 
When creating or unlinking a name in a directory use explicit
inode_lock_nested() instead of fh_lock(), and explicit calls to
fh_fill_pre_attrs() and fh_fill_post_attrs().  This is already done
for renames, with lock_rename() as the explicit locking.

Also move the 'fill' calls closer to the operation that might change the
attributes.  This way they are avoided on some error paths.

For the v2-only code in nfsproc.c, the fill calls are not replaced as
they aren't needed.

Making the locking explicit will simplify proposed future changes to
locking for directories.  It also makes it easily visible exactly where
pre/post attributes are used - not all callers of fh_lock() actually
need the pre/post attributes.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2022-08-04 10:28:20 -04:00
..
acl.h NFSD: add posix ACLs to struct nfsd_attrs 2022-08-04 10:28:03 -04:00
auth.c nfsd: auth: Fix gid sorting when rootsquash enabled 2018-01-22 20:13:07 -08:00
auth.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
blocklayout.c block: remove genhd.h 2022-02-02 07:49:59 -07:00
blocklayoutxdr.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
blocklayoutxdr.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cache.h nfsd4: make drc_slab global, not per-net 2020-06-01 17:44:45 -04:00
current_stateid.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 fs: add is_idmapped_mnt() helper 2021-12-03 18:44:06 +01:00
export.h nfsd: report per-export stats 2021-01-25 09:36:28 -05:00
fault_inject.c nfsd: no need to check return value of debugfs_create functions 2019-07-03 16:57:17 +02:00
filecache.c NFSD: Ensure nf_inode is never dereferenced 2022-07-29 20:16:56 -04:00
filecache.h NFSD: Ensure nf_inode is never dereferenced 2022-07-29 20:16:56 -04:00
flexfilelayout.c nfsd: use correct format characters 2022-03-17 19:47:38 -04:00
flexfilelayoutxdr.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
flexfilelayoutxdr.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
idmap.h
Kconfig NFSD: Remove CONFIG_NFSD_V3 2022-03-11 10:25:14 -05:00
lockd.c NFSD: simplify struct nfsfh 2021-10-02 15:51:10 -04:00
Makefile NFSD: Remove CONFIG_NFSD_V3 2022-03-11 10:25:14 -05:00
netns.h NFSD: limit the number of v4 clients to 1024 per 1GB of system memory 2022-07-29 20:16:56 -04:00
nfs2acl.c SUNRPC: Return true/false (not 1/0) from bool functions 2022-03-27 23:25:52 -04:00
nfs3acl.c SUNRPC: Change return value type of .pc_encode 2021-10-13 11:34:49 -04:00
nfs3proc.c NFSD: use explicit lock/unlock for directory ops 2022-08-04 10:28:20 -04:00
nfs3xdr.c NFSD: Deprecate NFS_OFFSET_MAX 2022-02-09 09:24:40 -05:00
nfs4acl.c NFSD: add posix ACLs to struct nfsd_attrs 2022-08-04 10:28:03 -04:00
nfs4callback.c NFSD: Move copy offload callback arguments into a separate structure 2022-07-29 20:17:00 -04:00
nfs4idmap.c nfsd: Use seq_putc() in two functions 2020-07-13 17:28:46 -04:00
nfs4layouts.c nfsd: fix using the correct variable for sizeof() 2022-03-20 12:49:38 -04:00
nfs4proc.c NFSD: use explicit lock/unlock for directory ops 2022-08-04 10:28:20 -04:00
nfs4recover.c nfsd: Fix nsfd startup race (again) 2021-12-10 11:54:59 -05:00
nfs4state.c NFSD: reduce locking in nfsd_lookup() 2022-08-04 10:28:20 -04:00
nfs4xdr.c NFSD: Replace boolean fields in struct nfsd4_copy 2022-07-29 20:16:59 -04:00
nfscache.c nfsd: destroy percpu stats counters after reply cache shutdown 2022-05-23 15:22:17 -04:00
nfsctl.c nfsd: silence extraneous printk on nfsd.ko insertion 2022-07-29 20:16:56 -04:00
nfsd.h NFSD: limit the number of v4 clients to 1024 per 1GB of system memory 2022-07-29 20:16:56 -04:00
nfsfh.c NFSD: reduce locking in nfsd_lookup() 2022-08-04 10:28:20 -04:00
nfsfh.h NFSD: reduce locking in nfsd_lookup() 2022-08-04 10:28:20 -04:00
nfsproc.c NFSD: use explicit lock/unlock for directory ops 2022-08-04 10:28:20 -04:00
nfssvc.c NFSD: Remove CONFIG_NFSD_V3 2022-03-11 10:25:14 -05:00
nfsxdr.c SUNRPC: Change return value type of .pc_encode 2021-10-13 11:34:49 -04:00
pnfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
state.h NFSD: Make nfs4_put_copy() static 2022-07-29 20:16:59 -04:00
stats.c nfsd: make nfsd_stats.th_cnt atomic_t 2021-12-13 13:42:51 -05:00
stats.h nfsd: make nfsd_stats.th_cnt atomic_t 2021-12-13 13:42:51 -05:00
trace.c NFSD: Add SPDX header for fs/nfsd/trace.c 2020-11-30 13:00:24 -05:00
trace.h NFSD: Move nfsd_file_trace_alloc() tracepoint 2022-07-29 20:16:07 -04:00
vfs.c NFSD: use explicit lock/unlock for directory ops 2022-08-04 10:28:20 -04:00
vfs.h NFSD: add posix ACLs to struct nfsd_attrs 2022-08-04 10:28:03 -04:00
xdr3.h SUNRPC: Change return value type of .pc_encode 2021-10-13 11:34:49 -04:00
xdr4.h NFSD: verify the opened dentry after setting a delegation 2022-07-29 20:17:00 -04:00
xdr4cb.h NFSD CB_OFFLOAD xdr 2018-09-25 20:34:54 -04:00
xdr.h NFSD: prevent underflow in nfssvc_decode_writeargs() 2022-03-15 09:35:56 -04:00