[PATCH v5 10/14] xfs: Factor out xfs_attr_rmtval_invalidate

Allison Collins
2019-12-12T04:15:32Z

Because new delayed attribute routines cannot roll
transactions, we carve off the parts of
xfs_attr_rmtval_remove that we can use. This will help to
reduce repetitive code later when we introduce delayed
attributes.

Signed-off-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
---
fs/xfs/libxfs/xfs_attr_remote.c | 30 +++++++++++++++++++++---------
fs/xfs/libxfs/xfs_attr_remote.h | 1 +
2 files changed, 22 insertions(+), 9 deletions(-)

diff --git a/fs/xfs/libxfs/xfs_attr_remote.c b/fs/xfs/libxfs/xfs_attr_remote.c
index 21f0001..bde1484 100644
--- a/fs/xfs/libxfs/xfs_attr_remote.c
+++ b/fs/xfs/libxfs/xfs_attr_remote.c
@@ -589,21 +589,14 @@ xfs_attr_rmtval_set_value(
return 0;
}

-/*
- * Remove the value associated with an attribute by deleting the
- * out-of-line buffer that it is stored on.
- */
int
-xfs_attr_rmtval_remove(
+xfs_attr_rmtval_invalidate(
struct xfs_da_args *args)
{
struct xfs_mount *mp = args->dp->i_mount;
xfs_dablk_t lblkno;
int blkcnt;
int error;
- int done;
-
- trace_xfs_attr_rmtval_remove(args);

/*
* Roll through the "value", invalidating the attribute value's blocks.
@@ -645,13 +638,32 @@ xfs_attr_rmtval_remove(
lblkno += map.br_blockcount;
blkcnt -= map.br_blockcount;
}
+ return 0;
+}

+/*
+ * Remove the value associated with an attribute by deleting the
+ * out-of-line buffer that it is stored on.
+ */
+int
+xfs_attr_rmtval_remove(
+ struct xfs_da_args *args)
+{
+ xfs_dablk_t lblkno;
+ int blkcnt;
+ int error = 0;
+ int done = 0;
+
+ trace_xfs_attr_rmtval_remove(args);
+
+ error = xfs_attr_rmtval_invalidate(args);
+ if (error)
+ return error;
/*
* Keep de-allocating extents until the remote-value region is gone.
*/
lblkno = args->rmtblkno;
blkcnt = args->rmtblkcnt;
- done = 0;
while (!done) {
error = xfs_bunmapi(args->trans, args->dp, lblkno, blkcnt,
XFS_BMAPI_ATTRFORK, 1, &done);
diff --git a/fs/xfs/libxfs/xfs_attr_remote.h b/fs/xfs/libxfs/xfs_attr_remote.h
index cd7670d..b6fd35a 100644
--- a/fs/xfs/libxfs/xfs_attr_remote.h
+++ b/fs/xfs/libxfs/xfs_attr_remote.h
@@ -11,6 +11,7 @@ int xfs_attr3_rmt_blocks(struct xfs_mount *mp, int attrlen);
int xfs_attr_rmtval_get(struct xfs_da_args *args);
int xfs_attr_rmtval_set(struct xfs_da_args *args);
int xfs_attr_rmtval_remove(struct xfs_da_args *args);
+int xfs_attr_rmtval_invalidate(struct xfs_da_args *args);
int xfs_attr_rmtval_set_value(struct xfs_da_args *args);
int xfs_attr_rmt_find_hole(struct xfs_da_args *args);
#endif /* __XFS_ATTR_REMOTE_H__ */
--
2.7.4