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| author | Josef Bacik <josef@redhat.com> | 2011-07-18 13:21:38 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2011-07-20 20:47:58 -0400 |
| commit | 06222e491e663dac939f04b125c9dc52126a75c4 (patch) | |
| tree | 99636fd666c8148a5bf58ea4844263d4b3a36310 /fs/cifs | |
| parent | c334b1138bd44bea578eab7971c59bd9212a1093 (diff) | |
| download | op-kernel-dev-06222e491e663dac939f04b125c9dc52126a75c4.zip op-kernel-dev-06222e491e663dac939f04b125c9dc52126a75c4.tar.gz | |
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/cifs')
| -rw-r--r-- | fs/cifs/cifsfs.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index cbbb55e..8655174 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -704,8 +704,11 @@ static ssize_t cifs_file_aio_write(struct kiocb *iocb, const struct iovec *iov, static loff_t cifs_llseek(struct file *file, loff_t offset, int 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) { int rc; struct inode *inode = file->f_path.dentry->d_inode; |
