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| author | Trond Myklebust <trondmy@gmail.com> | 2020-01-06 21:40:30 +0300 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2020-01-23 00:25:40 +0300 |
| commit | 5011af4c698a95b4dc4e374b1ce3acd122a9170f (patch) | |
| tree | 963befb8ca298ac85242f9916fc808de07c33420 /fs/nfsd/filecache.h | |
| parent | 16f8f894108270fd99667f06bae6ebcdd0f4e4bf (diff) | |
| download | linux-5011af4c698a95b4dc4e374b1ce3acd122a9170f.tar.xz | |
nfsd: Fix stable writes
Strictly speaking, a stable write error needs to reflect the
write + the commit of that write (and only that write). To
ensure that we don't pick up the write errors from other
writebacks, add a rw_semaphore to provide exclusion.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/filecache.h')
| -rw-r--r-- | fs/nfsd/filecache.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/nfsd/filecache.h b/fs/nfsd/filecache.h index 79a7d6808d97..986c325a54bd 100644 --- a/fs/nfsd/filecache.h +++ b/fs/nfsd/filecache.h @@ -46,6 +46,7 @@ struct nfsd_file { atomic_t nf_ref; unsigned char nf_may; struct nfsd_file_mark *nf_mark; + struct rw_semaphore nf_rwsem; }; int nfsd_file_cache_init(void); |