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(parent: f0bc4d1) | patch
xfs: unshare a range of blocks via fallocate
authorDarrick J. Wong <darrick.wong@oracle.com>
Mon, 3 Oct 2016 16:11:43 +0000 (09:11 -0700)
committerDarrick J. Wong <darrick.wong@oracle.com>
Wed, 5 Oct 2016 23:26:26 +0000 (16:26 -0700)
commit98cc2db5b8b2c9f38aebf54a7b03657406b6de26
tree2cac01aab4083ea3e9c3dae5ee7665a16e923190tree | snapshot (tar.gz zip)
parentf0bc4d134b46607967bda1205ce3226a1bd95f42commit | diff
xfs: unshare a range of blocks via fallocate

Unshare all shared extents if the user calls fallocate with the new
unshare mode flag set, so that we can guarantee that a subsequent
write will not ENOSPC.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
[hch: pass inode instead of file to xfs_reflink_dirty_range,
      use iomap infrastructure for copy up]
Signed-off-by: Christoph Hellwig <hch@lst.de>
fs/xfs/xfs_file.c diff | blob | blame | history
fs/xfs/xfs_reflink.c diff | blob | blame | history
fs/xfs/xfs_reflink.h diff | blob | blame | history