diff options
| author | J. Bruce Fields <bfields@redhat.com> | 2010-10-31 04:35:04 +0100 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2011-01-04 22:49:27 +0100 |
| commit | c84d500bc41658165ceb0dd04dc6a75249940fba (patch) | |
| tree | 95ad867b5fb4807f5f8c1172a0797e70d5e96168 | |
| parent | nfsd4: eliminate lease delete callback (diff) | |
| download | linux-c84d500bc41658165ceb0dd04dc6a75249940fba.tar.xz linux-c84d500bc41658165ceb0dd04dc6a75249940fba.zip | |
nfsd4: use a single struct file for delegations
When we converted to sharing struct filess between nfs4 opens I went too
far and also used the same mechanism for delegations. But keeping
a reference to the struct file ensures it will outlast the lease, and
allows us to remove the lease with the same file as we added it.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| -rw-r--r-- | fs/nfsd/nfs4state.c | 10 | ||||
| -rw-r--r-- | fs/nfsd/state.h | 1 |
2 files changed, 6 insertions, 5 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 2e44ad2539ab..cbe1b81c147d 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -230,7 +230,8 @@ alloc_init_deleg(struct nfs4_client *clp, struct nfs4_stateid *stp, struct svc_f dp->dl_client = clp; get_nfs4_file(fp); dp->dl_file = fp; - nfs4_file_get_access(fp, O_RDONLY); + dp->dl_vfs_file = find_readable_file(fp); + get_file(dp->dl_vfs_file); dp->dl_flock = NULL; dp->dl_type = type; dp->dl_stateid.si_boot = boot_time; @@ -252,6 +253,7 @@ nfs4_put_delegation(struct nfs4_delegation *dp) if (atomic_dec_and_test(&dp->dl_count)) { dprintk("NFSD: freeing dp %p\n",dp); put_nfs4_file(dp->dl_file); + fput(dp->dl_vfs_file); kmem_cache_free(deleg_slab, dp); num_delegations--; } @@ -265,12 +267,10 @@ nfs4_put_delegation(struct nfs4_delegation *dp) static void nfs4_close_delegation(struct nfs4_delegation *dp) { - struct file *filp = find_readable_file(dp->dl_file); - dprintk("NFSD: close_delegation dp %p\n",dp); + /* XXX: do we even need this check?: */ if (dp->dl_flock) - vfs_setlease(filp, F_UNLCK, &dp->dl_flock); - nfs4_file_put_access(dp->dl_file, O_RDONLY); + vfs_setlease(dp->dl_vfs_file, F_UNLCK, &dp->dl_flock); } /* Called under the state lock. */ diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h index 39adc27b0685..84b230217b1b 100644 --- a/fs/nfsd/state.h +++ b/fs/nfsd/state.h @@ -81,6 +81,7 @@ struct nfs4_delegation { atomic_t dl_count; /* ref count */ struct nfs4_client *dl_client; struct nfs4_file *dl_file; + struct file *dl_vfs_file; struct file_lock *dl_flock; u32 dl_type; time_t dl_time; |