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authorJosef Bacik <josef@redhat.com>2011-07-18 21:21:38 +0400
committerAl Viro <viro@zeniv.linux.org.uk>2011-07-21 04:47:58 +0400
commit06222e491e663dac939f04b125c9dc52126a75c4 (patch)
tree99636fd666c8148a5bf58ea4844263d4b3a36310 /fs/nfs
parentc334b1138bd44bea578eab7971c59bd9212a1093 (diff)
downloadlinux-06222e491e663dac939f04b125c9dc52126a75c4.tar.xz
fs: handle SEEK_HOLE/SEEK_DATA properly in all fs's that define their own llseek
This converts everybody to handle SEEK_HOLE/SEEK_DATA properly. In some cases we just return -EINVAL, in others we do the normal generic thing, and in others we're simply making sure that the properly due-dilligence is done. For example in NFS/CIFS we need to make sure the file size is update properly for the SEEK_HOLE and SEEK_DATA case, but since it calls the generic llseek stuff itself that is all we have to do. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/file.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 2f093ed16980..2c1705b6acd7 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -187,8 +187,11 @@ static loff_t nfs_file_llseek(struct file *filp, loff_t offset, int origin)
filp->f_path.dentry->d_name.name,
offset, origin);
- /* origin == SEEK_END => we must revalidate the cached file length */
- if (origin == SEEK_END) {
+ /*
+ * origin == SEEK_END || SEEK_DATA || SEEK_HOLE => we must revalidate
+ * the cached file length
+ */
+ if (origin != SEEK_SET || origin != SEEK_CUR) {
struct inode *inode = filp->f_mapping->host;
int retval = nfs_revalidate_file_size(inode, filp);