linux/fs/iomap
Christoph Hellwig 64c58d7c99 iomap: add a merge boundary flag
File systems might have boundaries over which merges aren't possible.
In fact these are very common, although most of the time some kind of
header at the beginning of this region (e.g. XFS alloation groups, ext4
block groups) automatically create a merge barrier.  But if that is
not present, say for a device purely used for data we need to manually
communicate that to iomap.

Add a IOMAP_F_BOUNDARY flag to never merge I/O into a previous mapping.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2024-11-05 13:38:39 -08:00
..
buffered-io.c iomap: add a merge boundary flag 2024-11-05 13:38:39 -08:00
direct-io.c iomap: remove set_memor_ro() on zero page 2024-09-03 15:01:23 +02:00
fiemap.c fs: Move many prototypes to pagemap.h 2022-03-21 12:59:02 -04:00
iter.c iomap: write iomap validity checks 2022-11-29 09:09:17 +11:00
Makefile kbuild: use $(src) instead of $(srctree)/$(src) for source directory 2024-05-10 04:34:52 +09:00
seek.c iomap: switch iomap_seek_data to use iomap_iter 2021-08-16 21:26:33 -07:00
swapfile.c mm/swap: consider max pages in iomap_swapfile_add_extent 2021-08-18 12:47:52 -07:00
trace.c iomap: Add DIO tracepoints 2023-04-21 08:54:47 -07:00
trace.h iomap: Add processed for iomap_iter 2024-02-21 08:37:50 +01:00