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authorPhil Turnbull <phil.turnbull@oracle.com>2016-07-21 13:43:09 -0400
committerIlya Dryomov <idryomov@gmail.com>2016-07-28 03:00:45 +0200
commit955818cd5b6c4b58ea574ace4573e7afa4c19c1e (patch)
treefc5b53a6a53a92ddaf70a4d1882c706481d5a0bd /fs/ceph
parent6b1a9a6c54122dade800fd61e90d441e58de19eb (diff)
downloadop-kernel-dev-955818cd5b6c4b58ea574ace4573e7afa4c19c1e.zip
op-kernel-dev-955818cd5b6c4b58ea574ace4573e7afa4c19c1e.tar.gz
ceph: Correctly return NXIO errors from ceph_llseek
ceph_llseek does not correctly return NXIO errors because the 'out' path always returns 'offset'. Fixes: 06222e491e66 ("fs: handle SEEK_HOLE/SEEK_DATA properly in all fs's that define their own llseek") Signed-off-by: Phil Turnbull <phil.turnbull@oracle.com> Signed-off-by: Yan, Zheng <zyan@redhat.com>
Diffstat (limited to 'fs/ceph')
-rw-r--r--fs/ceph/file.c12
1 files changed, 5 insertions, 7 deletions
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 7f2ef26..0f5375d 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -1499,16 +1499,14 @@ static loff_t ceph_llseek(struct file *file, loff_t offset, int whence)
{
struct inode *inode = file->f_mapping->host;
loff_t i_size;
- int ret;
+ loff_t ret;
inode_lock(inode);
if (whence == SEEK_END || whence == SEEK_DATA || whence == SEEK_HOLE) {
ret = ceph_do_getattr(inode, CEPH_STAT_CAP_SIZE, false);
- if (ret < 0) {
- offset = ret;
+ if (ret < 0)
goto out;
- }
}
i_size = i_size_read(inode);
@@ -1524,7 +1522,7 @@ static loff_t ceph_llseek(struct file *file, loff_t offset, int whence)
* write() or lseek() might have altered it
*/
if (offset == 0) {
- offset = file->f_pos;
+ ret = file->f_pos;
goto out;
}
offset += file->f_pos;
@@ -1544,11 +1542,11 @@ static loff_t ceph_llseek(struct file *file, loff_t offset, int whence)
break;
}
- offset = vfs_setpos(file, offset, inode->i_sb->s_maxbytes);
+ ret = vfs_setpos(file, offset, inode->i_sb->s_maxbytes);
out:
inode_unlock(inode);
- return offset;
+ return ret;
}
static inline void ceph_zero_partial_page(
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