diff options
| -rw-r--r-- | fs/nfs/file.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/fs/nfs/file.c b/fs/nfs/file.c index af330c31f627..1d71472d239d 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -744,15 +744,18 @@ do_setlk(struct file *filp, int cmd, struct file_lock *fl, int is_local) goto out; /* - * Revalidate the cache if the server has time stamps granular - * enough to detect subsecond changes. Otherwise, clear the - * cache to prevent missing any changes. + * Invalidate cache to prevent missing any changes. If + * the file is mapped, clear the page cache as well so + * those mappings will be loaded. * * This makes locking act as a cache coherency point. */ nfs_sync_mapping(filp->f_mapping); - if (!NFS_PROTO(inode)->have_delegation(inode, FMODE_READ)) + if (!NFS_PROTO(inode)->have_delegation(inode, FMODE_READ)) { nfs_zap_caches(inode); + if (mapping_mapped(filp->f_mapping)) + nfs_revalidate_mapping(inode, filp->f_mapping); + } out: return status; } |