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| author | J. Bruce Fields <bfields@pad.home.fieldses.org> | 2010-08-07 09:21:41 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@pad.home.fieldses.org> | 2010-08-07 09:50:05 -0400 |
| commit | 998db52c03cd293d16a457f1b396cea932244147 (patch) | |
| tree | 6546b0752c402c458723242e3a03723e2083040b /fs | |
| parent | 7fa53cc872332b265bc5ba1266f39586f218ad4a (diff) | |
| download | linux-stable-998db52c03cd293d16a457f1b396cea932244147.tar.gz linux-stable-998db52c03cd293d16a457f1b396cea932244147.tar.bz2 linux-stable-998db52c03cd293d16a457f1b396cea932244147.zip | |
nfsd4: fix file open accounting for RDWR opens
Commit f9d7562fdb9dc0ada3a7aba5dbbe9d965e2a105d "nfsd4: share file
descriptors between stateid's" didn't correctly account for O_RDWR opens.
Symptoms include leaked files, resulting in failures to unmount and/or
warnings about orphaned inodes on reboot.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nfsd/nfs4state.c | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 0b4351f8238a..0a024917f052 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -162,13 +162,22 @@ static struct list_head ownerstr_hashtbl[OWNER_HASH_SIZE]; static struct list_head file_hashtbl[FILE_HASH_SIZE]; static struct list_head stateid_hashtbl[STATEID_HASH_SIZE]; -static inline void nfs4_file_get_access(struct nfs4_file *fp, int oflag) +static void __nfs4_file_get_access(struct nfs4_file *fp, int oflag) { BUG_ON(!(fp->fi_fds[oflag] || fp->fi_fds[O_RDWR])); atomic_inc(&fp->fi_access[oflag]); } -static inline void nfs4_file_put_fd(struct nfs4_file *fp, int oflag) +static void nfs4_file_get_access(struct nfs4_file *fp, int oflag) +{ + if (oflag == O_RDWR) { + __nfs4_file_get_access(fp, O_RDONLY); + __nfs4_file_get_access(fp, O_WRONLY); + } else + __nfs4_file_get_access(fp, oflag); +} + +static void nfs4_file_put_fd(struct nfs4_file *fp, int oflag) { if (fp->fi_fds[oflag]) { fput(fp->fi_fds[oflag]); @@ -176,7 +185,7 @@ static inline void nfs4_file_put_fd(struct nfs4_file *fp, int oflag) } } -static inline void nfs4_file_put_access(struct nfs4_file *fp, int oflag) +static void __nfs4_file_put_access(struct nfs4_file *fp, int oflag) { if (atomic_dec_and_test(&fp->fi_access[oflag])) { nfs4_file_put_fd(fp, O_RDWR); @@ -184,6 +193,15 @@ static inline void nfs4_file_put_access(struct nfs4_file *fp, int oflag) } } +static void nfs4_file_put_access(struct nfs4_file *fp, int oflag) +{ + if (oflag == O_RDWR) { + __nfs4_file_put_access(fp, O_RDONLY); + __nfs4_file_put_access(fp, O_WRONLY); + } else + __nfs4_file_put_access(fp, oflag); +} + static struct nfs4_delegation * alloc_init_deleg(struct nfs4_client *clp, struct nfs4_stateid *stp, struct svc_fh *current_fh, u32 type) { |