diff options
Diffstat (limited to 'fs/nfs/super.c')
| -rw-r--r-- | fs/nfs/super.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 31a11b0e885d..368d9395d2e7 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -405,12 +405,15 @@ void __exit unregister_nfs_fs(void) unregister_filesystem(&nfs_fs_type); } -void nfs_sb_active(struct super_block *sb) +bool nfs_sb_active(struct super_block *sb) { struct nfs_server *server = NFS_SB(sb); - if (atomic_inc_return(&server->active) == 1) - atomic_inc(&sb->s_active); + if (!atomic_inc_not_zero(&sb->s_active)) + return false; + if (atomic_inc_return(&server->active) != 1) + atomic_dec(&sb->s_active); + return true; } EXPORT_SYMBOL_GPL(nfs_sb_active); |