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Merge tag 'fixes_for_v5.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull udf fixes from Jan Kara:
 "Two udf error handling fixes"

* tag 'fixes_for_v5.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  udf: Propagate errors from udf_truncate_extents()
  udf: Fix crash on IO error during truncate
This commit is contained in:
Linus Torvalds 2019-03-21 10:31:55 -07:00
commit 0939221e64
3 changed files with 10 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
fs/udf/inode.c
View File

@ -1242,8 +1242,10 @@ set_size:
truncate_setsize(inode, newsize);
down_write(&iinfo->i_data_sem);
udf_clear_extent_cache(inode);
udf_truncate_extents(inode);
err = udf_truncate_extents(inode);
up_write(&iinfo->i_data_sem);
if (err)
return err;
}
update_time:
inode->i_mtime = inode->i_ctime = current_time(inode);

8
fs/udf/truncate.c
View File

@ -199,7 +199,7 @@ static void udf_update_alloc_ext_desc(struct inode *inode,
* for making file shorter. For making file longer, udf_extend_file() has to
* be used.
*/
void udf_truncate_extents(struct inode *inode)
int udf_truncate_extents(struct inode *inode)
{
struct extent_position epos;
struct kernel_lb_addr eloc, neloc = {};
@ -224,7 +224,7 @@ void udf_truncate_extents(struct inode *inode)
if (etype == -1) {
/* We should extend the file? */
WARN_ON(byte_offset);
return;
return 0;
}
epos.offset -= adsize;
extent_trunc(inode, &epos, &eloc, etype, elen, byte_offset);
@ -260,6 +260,9 @@ void udf_truncate_extents(struct inode *inode)
epos.block = eloc;
epos.bh = udf_tread(sb,
udf_get_lb_pblock(sb, &eloc, 0));
/* Error reading indirect block? */
if (!epos.bh)
return -EIO;
if (elen)
indirect_ext_len =
(elen + sb->s_blocksize - 1) >>
@ -283,4 +286,5 @@ void udf_truncate_extents(struct inode *inode)
iinfo->i_lenExtents = inode->i_size;
brelse(epos.bh);
return 0;
}

2
fs/udf/udfdecl.h
View File

@ -235,7 +235,7 @@ extern struct inode *udf_new_inode(struct inode *, umode_t);
/* truncate.c */
extern void udf_truncate_tail_extent(struct inode *);
extern void udf_discard_prealloc(struct inode *);
extern void udf_truncate_extents(struct inode *);
extern int udf_truncate_extents(struct inode *);
/* balloc.c */
extern void udf_free_blocks(struct super_block *, struct inode *,