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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2010-10-04 23:59:08 +0200 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2010-10-20 01:41:55 +0200 |
| commit | b0ed9dbc24f1fd912b2dd08b995153cafc1d5b1c (patch) | |
| tree | bb86bfd7dabdab7b3df4f24e12b7f90bc045b201 /fs/nfs/nfs4proc.c | |
| parent | NFS: Don't SIGBUS if nfs_vm_page_mkwrite races with a cache invalidation (diff) | |
| download | linux-b0ed9dbc24f1fd912b2dd08b995153cafc1d5b1c.tar.xz linux-b0ed9dbc24f1fd912b2dd08b995153cafc1d5b1c.zip | |
NFSv4: Fix open recovery
NFSv4 open recovery is currently broken: since we do not clear the
state->flags states before attempting recovery, we end up with the
'can_open_cached()' function triggering. This again leads to no OPEN call
being put on the wire.
Reported-by: Sachin Prabhu <sprabhu@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@kernel.org
Diffstat (limited to '')
| -rw-r--r-- | fs/nfs/nfs4proc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index aee1bcc1fcc9..7f25246bf38c 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -1118,6 +1118,7 @@ static int nfs4_open_recover(struct nfs4_opendata *opendata, struct nfs4_state * clear_bit(NFS_DELEGATED_STATE, &state->flags); smp_rmb(); if (state->n_rdwr != 0) { + clear_bit(NFS_O_RDWR_STATE, &state->flags); ret = nfs4_open_recover_helper(opendata, FMODE_READ|FMODE_WRITE, &newstate); if (ret != 0) return ret; @@ -1125,6 +1126,7 @@ static int nfs4_open_recover(struct nfs4_opendata *opendata, struct nfs4_state * return -ESTALE; } if (state->n_wronly != 0) { + clear_bit(NFS_O_WRONLY_STATE, &state->flags); ret = nfs4_open_recover_helper(opendata, FMODE_WRITE, &newstate); if (ret != 0) return ret; @@ -1132,6 +1134,7 @@ static int nfs4_open_recover(struct nfs4_opendata *opendata, struct nfs4_state * return -ESTALE; } if (state->n_rdonly != 0) { + clear_bit(NFS_O_RDONLY_STATE, &state->flags); ret = nfs4_open_recover_helper(opendata, FMODE_READ, &newstate); if (ret != 0) return ret; |