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| author | J. Bruce Fields <bfields@redhat.com> | 2013-08-23 17:55:18 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2013-08-30 17:30:45 -0400 |
| commit | 3477565e6a73da7bb50fce6ac718b31eddb37fbb (patch) | |
| tree | a11a9b5d1fae7f6ca5e527d12f66aa7d1826a0a2 | |
| parent | b8297cec2da30d3a5869597dbd7c8280d46a7dba (diff) | |
| download | op-kernel-dev-3477565e6a73da7bb50fce6ac718b31eddb37fbb.zip op-kernel-dev-3477565e6a73da7bb50fce6ac718b31eddb37fbb.tar.gz | |
Revert "nfsd: nfs4_file_get_access: need to be more careful with O_RDWR"
This reverts commit df66e75395c839c3a373bae897dbb1248f741b45.
nfsd4_lock can get a read-only or write-only reference when only a
read-write open is available. This is normal.
Cc: Harshula Jayasuriya <harshula@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| -rw-r--r-- | fs/nfsd/nfs4state.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 5e609b1..eb9cf81 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -282,14 +282,19 @@ static unsigned int file_hashval(struct inode *ino) static struct hlist_head file_hashtbl[FILE_HASH_SIZE]; +static void __nfs4_file_get_access(struct nfs4_file *fp, int oflag) +{ + WARN_ON_ONCE(!(fp->fi_fds[oflag] || fp->fi_fds[O_RDWR])); + atomic_inc(&fp->fi_access[oflag]); +} + static void nfs4_file_get_access(struct nfs4_file *fp, int oflag) { - WARN_ON_ONCE(!fp->fi_fds[oflag]); if (oflag == O_RDWR) { - atomic_inc(&fp->fi_access[O_RDONLY]); - atomic_inc(&fp->fi_access[O_WRONLY]); + __nfs4_file_get_access(fp, O_RDONLY); + __nfs4_file_get_access(fp, O_WRONLY); } else - atomic_inc(&fp->fi_access[oflag]); + __nfs4_file_get_access(fp, oflag); } static void nfs4_file_put_fd(struct nfs4_file *fp, int oflag) |
