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authorEric Sandeen <sandeen@sandeen.net>2016-01-11 11:34:01 +1100
committerDave Chinner <david@fromorbit.com>2016-01-11 11:34:01 +1100
commitf6106efae5f4144b32f6c10de0dc3e7efc9181e3 (patch)
tree15d2a875d0e9bf02cf4b10488c249fa71c24b9b4 /fs/xfs/xfs_symlink.c
parente35438196c6a1d8b206471d51e80c380e80e047b (diff)
downloadlinux-f6106efae5f4144b32f6c10de0dc3e7efc9181e3.tar.bz2
xfs: eliminate committed arg from xfs_bmap_finish
Calls to xfs_bmap_finish() and xfs_trans_ijoin(), and the associated comments were replicated several times across the attribute code, all dealing with what to do if the transaction was or wasn't committed. And in that replicated code, an ASSERT() test of an uninitialized variable occurs in several locations: error = xfs_attr_thing(&args); if (!error) { error = xfs_bmap_finish(&args.trans, args.flist, &committed); } if (error) { ASSERT(committed); If the first xfs_attr_thing() failed, we'd skip the xfs_bmap_finish, never set "committed", and then test it in the ASSERT. Fix this up by moving the committed state internal to xfs_bmap_finish, and add a new inode argument. If an inode is passed in, it is passed through to __xfs_trans_roll() and joined to the transaction there if the transaction was committed. xfs_qm_dqalloc() was a little unique in that it called bjoin rather than ijoin, but as Dave points out we can detect the committed state but checking whether (*tpp != tp). Addresses-Coverity-Id: 102360 Addresses-Coverity-Id: 102361 Addresses-Coverity-Id: 102363 Addresses-Coverity-Id: 102364 Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/xfs_symlink.c')
-rw-r--r--fs/xfs/xfs_symlink.c12
1 files changed, 2 insertions, 10 deletions
diff --git a/fs/xfs/xfs_symlink.c b/fs/xfs/xfs_symlink.c
index 996481eeb491..b44284c1adda 100644
--- a/fs/xfs/xfs_symlink.c
+++ b/fs/xfs/xfs_symlink.c
@@ -178,7 +178,6 @@ xfs_symlink(
struct xfs_bmap_free free_list;
xfs_fsblock_t first_block;
bool unlock_dp_on_error = false;
- int committed;
xfs_fileoff_t first_fsb;
xfs_filblks_t fs_blocks;
int nmaps;
@@ -387,7 +386,7 @@ xfs_symlink(
xfs_trans_set_sync(tp);
}
- error = xfs_bmap_finish(&tp, &free_list, &committed);
+ error = xfs_bmap_finish(&tp, &free_list, NULL);
if (error)
goto out_bmap_cancel;
@@ -434,7 +433,6 @@ xfs_inactive_symlink_rmt(
struct xfs_inode *ip)
{
xfs_buf_t *bp;
- int committed;
int done;
int error;
xfs_fsblock_t first_block;
@@ -510,16 +508,10 @@ xfs_inactive_symlink_rmt(
/*
* Commit the first transaction. This logs the EFI and the inode.
*/
- error = xfs_bmap_finish(&tp, &free_list, &committed);
+ error = xfs_bmap_finish(&tp, &free_list, ip);
if (error)
goto error_bmap_cancel;
/*
- * The transaction must have been committed, since there were
- * actually extents freed by xfs_bunmapi. See xfs_bmap_finish.
- * The new tp has the extent freeing and EFDs.
- */
- ASSERT(committed);
- /*
* The first xact was committed, so add the inode to the new one.
* Mark it dirty so it will be logged and moved forward in the log as
* part of every commit.