From: "Darrick J. Wong" <darrick.wong@xxxxxxxxxx>
commit 64a3f3315bc60f710a0a25c1798ac0ea58c6fa1f upstream.
In most places in XFS, we have a specific order in which we gather
resources: grab the inode, allocate a transaction, then lock the inode.
xfs_bui_item_recover doesn't do it in that order, so fix it to be more
consistent. This also makes the error bailout code a bit less weird.
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Brian Foster <bfoster@xxxxxxxxxx>
Signed-off-by: Chandan Babu R <chandan.babu@xxxxxxxxxx>
---
fs/xfs/xfs_bmap_item.c | 38 ++++++++++++++++++++++++--------------
1 file changed, 24 insertions(+), 14 deletions(-)
diff --git a/fs/xfs/xfs_bmap_item.c b/fs/xfs/xfs_bmap_item.c
index 381dd4f078b0..f7015eabfdc9 100644
--- a/fs/xfs/xfs_bmap_item.c
+++ b/fs/xfs/xfs_bmap_item.c
@@ -22,6 +22,7 @@
#include "xfs_bmap_btree.h"
#include "xfs_trans_space.h"
#include "xfs_error.h"
+#include "xfs_quota.h"
kmem_zone_t *xfs_bui_zone;
kmem_zone_t *xfs_bud_zone;
@@ -488,21 +489,26 @@ xfs_bui_recover(
return -EFSCORRUPTED;
}
- error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate,
- XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK), 0, 0, &tp);
+ /* Grab the inode. */
+ error = xfs_iget(mp, NULL, bmap->me_owner, 0, 0, &ip);
if (error)
return error;
- budp = xfs_trans_get_bud(tp, buip);
-
- /* Grab the inode. */
- error = xfs_iget(mp, tp, bmap->me_owner, 0, XFS_ILOCK_EXCL, &ip);
+ error = xfs_qm_dqattach(ip);
if (error)
- goto err_inode;
+ goto err_rele;
if (VFS_I(ip)->i_nlink == 0)
xfs_iflags_set(ip, XFS_IRECOVERY);
+ /* Allocate transaction and do the work. */
+ error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate,
+ XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK), 0, 0, &tp);
+ if (error)
+ goto err_rele;
+
+ budp = xfs_trans_get_bud(tp, buip);
+ xfs_ilock(ip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, ip, 0);
count = bmap->me_len;
@@ -510,7 +516,7 @@ xfs_bui_recover(
whichfork, bmap->me_startoff, bmap->me_startblock,
&count, state);
if (error)
- goto err_inode;
+ goto err_cancel;
if (count > 0) {
ASSERT(bui_type == XFS_BMAP_UNMAP);
@@ -522,16 +528,20 @@ xfs_bui_recover(
}
set_bit(XFS_BUI_RECOVERED, &buip->bui_flags);
+ /* Commit transaction, which frees the transaction. */
error = xfs_defer_ops_capture_and_commit(tp, capture_list);
+ if (error)
+ goto err_unlock;
+
xfs_iunlock(ip, XFS_ILOCK_EXCL);
xfs_irele(ip);
- return error;
+ return 0;
-err_inode:
+err_cancel:
xfs_trans_cancel(tp);
- if (ip) {
- xfs_iunlock(ip, XFS_ILOCK_EXCL);
- xfs_irele(ip);
- }
+err_unlock:
+ xfs_iunlock(ip, XFS_ILOCK_EXCL);
+err_rele:
+ xfs_irele(ip);
return error;
}
--
2.35.1
