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xfs: Add error handling for xfs_reflink_cancel_cow_range

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commit 26b63bee2f upstream.

In xfs_inactive(), xfs_reflink_cancel_cow_range() is called
without error handling, risking unnoticed failures and
inconsistent behavior compared to other parts of the code.

Fix this issue by adding an error handling for the
xfs_reflink_cancel_cow_range(), improving code robustness.

Fixes: 6231848c3a ("xfs: check for cow blocks before trying to clear them")
Cc: stable@vger.kernel.org # v4.17
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Wentao Liang 2025-01-24 11:45:09 +08:00 committed by Greg Kroah-Hartman
parent a5e7a81e3a
commit 31c2134667
1 changed files with 5 additions and 2 deletions
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7
fs/xfs/xfs_inode.c
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@ -1392,8 +1392,11 @@ xfs_inactive(
goto out;
/* Try to clean out the cow blocks if there are any. */
if (xfs_inode_has_cow_data(ip))
xfs_reflink_cancel_cow_range(ip, 0, NULLFILEOFF, true);
if (xfs_inode_has_cow_data(ip)) {
error = xfs_reflink_cancel_cow_range(ip, 0, NULLFILEOFF, true);
if (error)
goto out;
}
if (VFS_I(ip)->i_nlink != 0) {
/*