diff options
| author | Stanislav Kinsbursky <skinsbursky@parallels.com> | 2012-03-28 17:09:29 +0200 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2012-04-11 23:55:03 +0200 |
| commit | f2c7ea10f901b7648eb61f1da7243588351f1dac (patch) | |
| tree | 26dd9756b573c3eb2a46f51b3e4d9fbfd2f19769 | |
| parent | nfsd: use exp_put() for svc_export_cache put (diff) | |
| download | linux-f2c7ea10f901b7648eb61f1da7243588351f1dac.tar.xz linux-f2c7ea10f901b7648eb61f1da7243588351f1dac.zip | |
nfsd: pass svc_export_cache pointer as private data to "exports" seq file ops
Global svc_export_cache cache is going to be replaced with per-net instance. So
prepare the ground for it.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| -rw-r--r-- | fs/nfsd/export.c | 18 | ||||
| -rw-r--r-- | fs/nfsd/nfsctl.c | 11 |
2 files changed, 21 insertions, 8 deletions
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c index c20a405b5862..149532023778 100644 --- a/fs/nfsd/export.c +++ b/fs/nfsd/export.c @@ -1029,13 +1029,14 @@ exp_pseudoroot(struct svc_rqst *rqstp, struct svc_fh *fhp) /* Iterator */ static void *e_start(struct seq_file *m, loff_t *pos) - __acquires(svc_export_cache.hash_lock) + __acquires(((struct cache_detail *)m->private)->hash_lock) { loff_t n = *pos; unsigned hash, export; struct cache_head *ch; - - read_lock(&svc_export_cache.hash_lock); + struct cache_detail *cd = m->private; + + read_lock(&cd->hash_lock); if (!n--) return SEQ_START_TOKEN; hash = n >> 32; @@ -1082,9 +1083,11 @@ static void *e_next(struct seq_file *m, void *p, loff_t *pos) } static void e_stop(struct seq_file *m, void *p) - __releases(svc_export_cache.hash_lock) + __releases(((struct cache_detail *)m->private)->hash_lock) { - read_unlock(&svc_export_cache.hash_lock); + struct cache_detail *cd = m->private; + + read_unlock(&cd->hash_lock); } static struct flags { @@ -1195,6 +1198,7 @@ static int e_show(struct seq_file *m, void *p) { struct cache_head *cp = p; struct svc_export *exp = container_of(cp, struct svc_export, h); + struct cache_detail *cd = m->private; if (p == SEQ_START_TOKEN) { seq_puts(m, "# Version 1.1\n"); @@ -1203,10 +1207,10 @@ static int e_show(struct seq_file *m, void *p) } cache_get(&exp->h); - if (cache_check(&svc_export_cache, &exp->h, NULL)) + if (cache_check(cd, &exp->h, NULL)) return 0; exp_put(exp); - return svc_export_show(m, &svc_export_cache, cp); + return svc_export_show(m, cd, cp); } const struct seq_operations nfs_exports_op = { diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c index 2c53be6d3579..ae19293e68df 100644 --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -127,7 +127,16 @@ static const struct file_operations transaction_ops = { static int exports_open(struct inode *inode, struct file *file) { - return seq_open(file, &nfs_exports_op); + int err; + struct seq_file *seq; + + err = seq_open(file, &nfs_exports_op); + if (err) + return err; + + seq = file->private_data; + seq->private = &svc_export_cache; + return 0; } static const struct file_operations exports_operations = { |