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authorKazuya Mio <k-mio@sx.jp.nec.com>2009-11-24 10:28:48 -0500
committerTheodore Ts'o <tytso@mit.edu>2009-11-24 10:28:48 -0500
commit446aaa6e7e993b38a6f21c6acfa68f3f1af3dbe3 (patch)
treededc46c0d80a20061c0df463dcc6260aef394e2d /fs/ext4/ioctl.c
parent94d7c16cbbbd0e03841fcf272bcaf0620ad39618 (diff)
ext4: initialize moved_len before calling ext4_move_extents()
The move_extent.moved_len is used to pass back the number of exchanged blocks count to user space. Currently the caller must clear this field; but we spend more code space checking for this requirement than simply zeroing the field ourselves, so let's just make life easier for everyone all around. Signed-off-by: Kazuya Mio <k-mio@sx.jp.nec.com> Signed-off-by: Akira Fujita <a-fujita@rs.jp.nec.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/ioctl.c')
-rw-r--r--fs/ext4/ioctl.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index c1cdf613e725..31e5ee0c858f 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -239,6 +239,7 @@ setversion_out:
239 } 239 }
240 } 240 }
241 241
242 me.moved_len = 0;
242 err = ext4_move_extents(filp, donor_filp, me.orig_start, 243 err = ext4_move_extents(filp, donor_filp, me.orig_start,
243 me.donor_start, me.len, &me.moved_len); 244 me.donor_start, me.len, &me.moved_len);
244 fput(donor_filp); 245 fput(donor_filp);