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
..
acpi	ACPI updates for 5.4-rc1	2019-09-17 19:31:36 -07:00
asm-generic	Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2019-09-28 08:14:15 -07:00
clocksource
crypto	Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity	2019-09-27 19:37:27 -07:00
drm	drm: Measure Self Refresh Entry/Exit times to avoid thrashing	2019-09-19 10:03:32 -04:00
dt-bindings	Main MIPS changes for v5.4:	2019-09-22 09:30:30 -07:00
keys
kvm
linux	iomap: use a srcmap for a read-modify-write I/O	2019-10-21 08:51:59 -07:00
math-emu
media
misc
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf	2019-09-27 20:15:00 +02:00
pcmcia
ras
rdma	RDMA subsystem updates for 5.4	2019-09-21 10:26:24 -07:00
scsi	SCSI misc on 20190919	2019-09-21 10:50:15 -07:00
soc	Char/Misc driver patches for 5.4-rc1	2019-09-18 11:14:31 -07:00
sound
target
trace	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2019-10-05 08:50:15 -07:00
uapi	TTY/Serial driver fixes for 5.4-rc3	2019-10-12 15:42:19 -07:00
vdso
video
xen	xen: fixes and cleanups for 5.4-rc2	2019-10-04 11:13:09 -07:00
Kbuild	- New Drivers	2019-09-23 19:37:49 -07:00