diff options
Diffstat (limited to 'fs/lockd')
| -rw-r--r-- | fs/lockd/svcsubs.c | 37 |
1 files changed, 32 insertions, 5 deletions
diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c index 1adcf93cb6e..d1c48b539df 100644 --- a/fs/lockd/svcsubs.c +++ b/fs/lockd/svcsubs.c @@ -196,6 +196,12 @@ again: return 0; } +static int +nlmsvc_always_match(void *dummy1, struct nlm_host *dummy2) +{ + return 1; +} + /* * Inspect a single file */ @@ -232,7 +238,8 @@ nlm_file_inuse(struct nlm_file *file) * Loop over all files in the file table. */ static int -nlm_traverse_files(void *data, nlm_host_match_fn_t match) +nlm_traverse_files(void *data, nlm_host_match_fn_t match, + int (*is_failover_file)(void *data, struct nlm_file *file)) { struct hlist_node *pos, *next; struct nlm_file *file; @@ -241,6 +248,8 @@ nlm_traverse_files(void *data, nlm_host_match_fn_t match) mutex_lock(&nlm_file_mutex); for (i = 0; i < FILE_NRHASH; i++) { hlist_for_each_entry_safe(file, pos, next, &nlm_files[i], f_list) { + if (is_failover_file && !is_failover_file(data, file)) + continue; file->f_count++; mutex_unlock(&nlm_file_mutex); @@ -345,7 +354,7 @@ void nlmsvc_mark_resources(void) { dprintk("lockd: nlmsvc_mark_resources\n"); - nlm_traverse_files(NULL, nlmsvc_mark_host); + nlm_traverse_files(NULL, nlmsvc_mark_host, NULL); } /* @@ -356,7 +365,7 @@ nlmsvc_free_host_resources(struct nlm_host *host) { dprintk("lockd: nlmsvc_free_host_resources\n"); - if (nlm_traverse_files(host, nlmsvc_same_host)) { + if (nlm_traverse_files(host, nlmsvc_same_host, NULL)) { printk(KERN_WARNING "lockd: couldn't remove all locks held by %s\n", host->h_name); @@ -376,8 +385,26 @@ nlmsvc_invalidate_all(void) * turn, which is about as inefficient as it gets. * Now we just do it once in nlm_traverse_files. */ - nlm_traverse_files(NULL, nlmsvc_is_client); + nlm_traverse_files(NULL, nlmsvc_is_client, NULL); +} + +static int +nlmsvc_match_sb(void *datap, struct nlm_file *file) +{ + struct super_block *sb = datap; + + return sb == file->f_file->f_path.mnt->mnt_sb; +} + +int +nlmsvc_unlock_all_by_sb(struct super_block *sb) +{ + int ret; + + ret = nlm_traverse_files(sb, nlmsvc_always_match, nlmsvc_match_sb); + return ret ? -EIO : 0; } +EXPORT_SYMBOL_GPL(nlmsvc_unlock_all_by_sb); static int nlmsvc_match_ip(void *datap, struct nlm_host *host) @@ -391,7 +418,7 @@ int nlmsvc_unlock_all_by_ip(__be32 server_addr) { int ret; - ret = nlm_traverse_files(&server_addr, nlmsvc_match_ip); + ret = nlm_traverse_files(&server_addr, nlmsvc_match_ip, NULL); return ret ? -EIO : 0; } |