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	ext4: compare old and new mode before setting update_mode flag	2018-12-10 00:22:38 -05:00
acl.h	ext4: fix up remaining files with SPDX cleanups	2017-12-17 22:00:59 -05:00
balloc.c	ext4: clean up kerneldoc warnigns when building with W=1	2019-06-19 16:30:03 -04:00
bitmap.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
block_validity.c	ext4: fix potential use after free after remounting with noblock_validity	2019-08-28 11:13:24 -04:00
dir.c	ext4: fix kernel oops caused by spurious casefold flag	2019-09-03 01:43:17 -04:00
ext4_extents.h	ext4: adjust reserved cluster count when removing extents	2018-10-01 14:25:08 -04:00
ext4_jbd2.c	ext4: shutdown should not prevent get_write_access	2018-02-18 22:07:36 -05:00
ext4_jbd2.h	ext4: use jbd2_inode dirty range scoping	2019-06-20 17:26:26 -04:00
ext4.h	Added new ext4 debugging ioctls to allow userspace to get information	2019-09-21 13:37:39 -07:00
extents_status.c	ext4: use percpu_counters for extent_status cache hits/misses	2019-08-28 11:19:23 -04:00
extents_status.h	ext4: use percpu_counters for extent_status cache hits/misses	2019-08-28 11:19:23 -04:00
extents.c	ext4: fix warning inside ext4_convert_unwritten_extents_endio	2019-08-22 22:53:46 -04:00
file.c	Added new ext4 debugging ioctls to allow userspace to get information	2019-09-21 13:37:39 -07:00
fsmap.c	ext4: fix miscellaneous sparse warnings	2019-05-12 04:49:47 -04:00
fsmap.h	ext4: fix up remaining files with SPDX cleanups	2017-12-17 22:00:59 -05:00
fsync.c	Revert "ext4: use ext4_write_inode() when fsyncing w/o a journal"	2019-01-31 23:41:11 -05:00
hash.c	ext4: fix kernel oops caused by spurious casefold flag	2019-09-03 01:43:17 -04:00
ialloc.c	ext4: Support case-insensitive file name lookups	2019-04-25 14:12:08 -04:00
indirect.c	ext4: clean up kerneldoc warnigns when building with W=1	2019-06-19 16:30:03 -04:00
inline.c	ext4: set error return correctly when ext4_htree_store_dirent fails	2019-08-12 14:29:38 -04:00
inode.c	iomap: use a srcmap for a read-modify-write I/O	2019-10-21 08:51:59 -07:00
ioctl.c	Added new ext4 debugging ioctls to allow userspace to get information	2019-09-21 13:37:39 -07:00
Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	ext4: add basic fs-verity support	2019-08-12 19:33:50 -07:00
mballoc.c	ext4: clean up kerneldoc warnigns when building with W=1	2019-06-19 16:30:03 -04:00
mballoc.h	ext4: fix up remaining files with SPDX cleanups	2017-12-17 22:00:59 -05:00
migrate.c	ext4: clean up indentation issues, remove extraneous tabs	2018-12-04 00:16:44 -05:00
mmp.c	ext4: don't mark mmp buffer head dirty	2018-09-15 17:11:25 -04:00
move_extent.c	ext4: use jbd2_inode dirty range scoping	2019-06-20 17:26:26 -04:00
namei.c	ext4: fix kernel oops caused by spurious casefold flag	2019-09-03 01:43:17 -04:00
page-io.c	for-linus-20190715	2019-07-15 21:20:52 -07:00
readpage.c	ext4: add fs-verity read support	2019-08-12 19:33:51 -07:00
resize.c	Add as a feature case-insensitive directories (the casefold feature)	2019-05-07 21:12:44 -07:00
super.c	Added new ext4 debugging ioctls to allow userspace to get information	2019-09-21 13:37:39 -07:00
symlink.c	ext4: switch to fscrypt_get_symlink()	2018-01-11 22:10:40 -05:00
sysfs.c	ext4: add basic fs-verity support	2019-08-12 19:33:50 -07:00
truncate.h	ext4: handle layout changes to pinned DAX mappings	2018-07-29 17:00:22 -04:00
verity.c	ext4: add basic fs-verity support	2019-08-12 19:33:50 -07:00
xattr_security.c	ext4: use XATTR_CREATE in ext4_initxattrs()	2018-05-10 11:52:14 -04:00
xattr_trusted.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
xattr_user.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
xattr.c	ext4: ignore e_value_offs for xattrs with value-in-ea-inode	2019-04-10 00:37:36 -04:00
xattr.h	ext4: add extra checks to ext4_xattr_block_get()	2018-03-30 20:04:11 -04:00