Goldwyn Rodrigues c039b99792 iomap: use a srcmap for a read-modify-write I/O ... The srcmap is used to identify where the read is to be performed from. It is passed to ->iomap_begin, which can fill it in if we need to read data for partially written blocks from a different location than the write target. The srcmap is only supported for buffered writes so far. Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com> [hch: merged two patches, removed the IOMAP_F_COW flag, use iomap as srcmap if not set, adjust length down to srcmap end as well] Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Acked-by: Goldwyn Rodrigues <rgoldwyn@suse.com>		2019-10-21 08:51:59 -07:00
..
acl.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
acl.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
aops.c	gfs2: Minor PAGE_SIZE arithmetic cleanups	2019-09-04 20:22:06 +02:00
aops.h	gfs2: mark stuffed_readpage static	2019-07-03 14:45:18 +02:00
bmap.c	iomap: use a srcmap for a read-modify-write I/O	2019-10-21 08:51:59 -07:00
bmap.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
dentry.c	gfs2: untangle the logic in gfs2_drevalidate	2019-09-03 09:42:41 +02:00
dir.c	gfs2: Delete an unnecessary check before brelse()	2019-09-04 20:22:17 +02:00
dir.h	gfs2: Delete an unnecessary check before brelse()	2019-09-04 20:22:17 +02:00
export.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
file.c	iomap: Allow forcing of waiting for running DIO in iomap_dio_rw()	2019-10-15 08:43:42 -07:00
gfs2.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
glock.c	gfs2: Use async glocks for rename	2019-09-04 20:22:17 +02:00
glock.h	gfs2: Use async glocks for rename	2019-09-04 20:22:17 +02:00
glops.c	gfs2: replace more printk with calls to fs_info and friends	2019-06-27 21:30:27 +02:00
glops.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
incore.h	Merge branch 'work.mount3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-09-24 12:33:34 -07:00
inode.c	gfs2: Use async glocks for rename	2019-09-04 20:22:17 +02:00
inode.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
lock_dlm.c	gfs2: Fix recovery slot bumping	2019-09-03 09:42:41 +02:00
log.c	gfs2: eliminate tr_num_revoke_rm	2019-06-27 21:03:53 +02:00
log.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
lops.c	gfs2: dump fsid when dumping glock problems	2019-06-27 21:27:43 +02:00
lops.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
main.c	SPDX update for 5.2-rc4	2019-06-08 12:52:42 -07:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
meta_io.c	gfs2: Rename SDF_SHUTDOWN to SDF_WITHDRAWN	2019-06-27 21:26:35 +02:00
meta_io.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
ops_fstype.c	Merge branch 'work.mount3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-09-24 12:33:34 -07:00
quota.c	gfs2: Minor PAGE_SIZE arithmetic cleanups	2019-09-04 20:22:06 +02:00
quota.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
recovery.c	gfs2: log which portion of the journal is replayed	2019-06-27 21:03:58 +02:00
recovery.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
rgrp.c	gfs2: Fix possible fs name overflows	2019-09-03 09:42:41 +02:00
rgrp.h	gfs2: dump fsid when dumping glock problems	2019-06-27 21:27:43 +02:00
super.c	Merge branch 'work.mount3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-09-24 12:33:34 -07:00
super.h	gfs2: Convert gfs2 to fs_context	2019-09-18 22:47:05 -04:00
sys.c	Driver Core and debugfs changes for 5.3-rc1	2019-07-12 12:24:03 -07:00
sys.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
trace_gfs2.h	gfs2: eliminate rs_inum and reduce the size of gfs2 inodes	2018-06-21 07:39:31 -05:00
trans.c	gfs2: eliminate tr_num_revoke_rm	2019-06-27 21:03:53 +02:00
trans.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
util.c	gfs2: Fix possible fs name overflows	2019-09-03 09:42:41 +02:00
util.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
xattr.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
xattr.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00