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authorDarrick J. Wong <darrick.wong@oracle.com>2016-10-03 09:11:34 -0700
committerDarrick J. Wong <darrick.wong@oracle.com>2016-10-04 18:06:41 -0700
commit60b4984fc3924bff292ec46b95a3e98b34b8e259 (patch)
treeea6699fa8c00b198d695149b854e0b8b864c014f /fs/xfs/xfs_iomap.c
parent2a06705cd5954030a2c501a09ac1a24b1c4019c2 (diff)
xfs: support allocating delayed extents in CoW fork
Modify xfs_bmap_add_extent_delay_real() so that we can convert delayed allocation extents in the CoW fork to real allocations, and wire this up all the way back to xfs_iomap_write_allocate(). In a subsequent patch, we'll modify the writepage handler to call this. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/xfs_iomap.c')
-rw-r--r--fs/xfs/xfs_iomap.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index e8312b0c9024..ad6939df9680 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -667,6 +667,7 @@ out_unlock:
int
xfs_iomap_write_allocate(
xfs_inode_t *ip,
+ int whichfork,
xfs_off_t offset,
xfs_bmbt_irec_t *imap)
{
@@ -679,8 +680,12 @@ xfs_iomap_write_allocate(
xfs_trans_t *tp;
int nimaps;
int error = 0;
+ int flags = 0;
int nres;
+ if (whichfork == XFS_COW_FORK)
+ flags |= XFS_BMAPI_COWFORK;
+
/*
* Make sure that the dquots are there.
*/
@@ -774,7 +779,7 @@ xfs_iomap_write_allocate(
* pointer that the caller gave to us.
*/
error = xfs_bmapi_write(tp, ip, map_start_fsb,
- count_fsb, 0, &first_block,
+ count_fsb, flags, &first_block,
nres, imap, &nimaps,
&dfops);
if (error)