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authorDarrick J. Wong <darrick.wong@oracle.com>2016-10-03 18:11:32 +0200
committerDarrick J. Wong <darrick.wong@oracle.com>2016-10-05 03:06:40 +0200
commit3993baeb3c52f497d243a4a3b5510df97b22596b (patch)
tree2dab55892137a064012b352a0f9ac730797221fb /fs/xfs/xfs_icache.c
parentxfs: don't allow reflinked dir/dev/fifo/socket/pipe files (diff)
downloadlinux-3993baeb3c52f497d243a4a3b5510df97b22596b.tar.xz
linux-3993baeb3c52f497d243a4a3b5510df97b22596b.zip
xfs: introduce the CoW fork
Introduce a new in-core fork for storing copy-on-write delalloc reservations and allocated extents that are in the process of being written out. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/xfs_icache.c')
-rw-r--r--fs/xfs/xfs_icache.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
index 65b2e3f85f52..2d3de02f3529 100644
--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -76,6 +76,9 @@ xfs_inode_alloc(
ip->i_mount = mp;
memset(&ip->i_imap, 0, sizeof(struct xfs_imap));
ip->i_afp = NULL;
+ ip->i_cowfp = NULL;
+ ip->i_cnextents = 0;
+ ip->i_cformat = XFS_DINODE_FMT_EXTENTS;
memset(&ip->i_df, 0, sizeof(xfs_ifork_t));
ip->i_flags = 0;
ip->i_delayed_blks = 0;
@@ -101,6 +104,8 @@ xfs_inode_free_callback(
if (ip->i_afp)
xfs_idestroy_fork(ip, XFS_ATTR_FORK);
+ if (ip->i_cowfp)
+ xfs_idestroy_fork(ip, XFS_COW_FORK);
if (ip->i_itemp) {
ASSERT(!(ip->i_itemp->ili_item.li_flags & XFS_LI_IN_AIL));