kernel/linux.git/fs/iomap/Makefile, branch linux-7.1.y

iomap: move buffered io bio logic into new file

2025-11-05T11:57:23+00:00

Move bio logic in the buffered io code into its own file and remove CONFIG_BLOCK gating for iomap read/readahead. [1] https://lore.kernel.org/linux-fsdevel/aMK2GuumUf93ep99@infradead.org/ Signed-off-by: Christoph Hellwig Signed-off-by: Joanne Koong Reviewed-by: Darrick J. Wong Signed-off-by: Christian Brauner

iomap: build the writeback code without CONFIG_BLOCK

2025-07-14T08:51:33+00:00

Allow fuse to use the iomap writeback code even when CONFIG_BLOCK is not enabled. Do this with an ifdef instead of a separate file to keep the iomap_folio_state local to buffered-io.c. Signed-off-by: Christoph Hellwig Link: https://lore.kernel.org/20250710133343.399917-15-hch@lst.de Reviewed-by: Darrick J. Wong Reviewed-by: Joanne Koong Signed-off-by: Christian Brauner

iomap: split bios to zone append limits in the submission handlers

2025-02-06T12:02:14+00:00

Provide helpers for file systems to split bios in the direct I/O and writeback I/O submission handlers. The split ioends are chained to the parent ioend so that only the parent ioend originally generated by the iomap layer will be processed after all the chained off children have completed. This is based on the block layer bio chaining that has supported a similar mechanism for a long time. This Follows btrfs' lead and don't try to build bios to hardware limits for zone append commands, but instead build them as normal unconstrained bios and split them to the hardware limits in the I/O submission handler. Signed-off-by: Christoph Hellwig Link: https://lore.kernel.org/r/20250206064035.2323428-5-hch@lst.de Reviewed-by: "Darrick J. Wong" Signed-off-by: Christian Brauner

kbuild: use $(src) instead of $(srctree)/$(src) for source directory

2024-05-09T19:34:52+00:00

Kbuild conventionally uses $(obj)/ for generated files, and $(src)/ for checked-in source files. It is merely a convention without any functional difference. In fact, $(obj) and $(src) are exactly the same, as defined in scripts/Makefile.build: src := $(obj) When the kernel is built in a separate output directory, $(src) does not accurately reflect the source directory location. While Kbuild resolves this discrepancy by specifying VPATH=$(srctree) to search for source files, it does not cover all cases. For example, when adding a header search path for local headers, -I$(srctree)/$(src) is typically passed to the compiler. This introduces inconsistency between upstream and downstream Makefiles because $(src) is used instead of $(srctree)/$(src) for the latter. To address this inconsistency, this commit changes the semantics of $(src) so that it always points to the directory in the source tree. Going forward, the variables used in Makefiles will have the following meanings: $(obj) - directory in the object tree $(src) - directory in the source tree (changed by this commit) $(objtree) - the top of the kernel object tree $(srctree) - the top of the kernel source tree Consequently, $(srctree)/$(src) in upstream Makefiles need to be replaced with $(src). Signed-off-by: Masahiro Yamada Reviewed-by: Nicolas Schier

iomap: build the block based code conditionally

2021-12-04T16:58:54+00:00

Only build the block based iomap code if CONFIG_BLOCK is set. Currently that is always the case, but it will change soon. Signed-off-by: Christoph Hellwig Reviewed-by: Dan Williams Reviewed-by: Darrick J. Wong Link: https://lore.kernel.org/r/20211129102203.2243509-29-hch@lst.de Signed-off-by: Dan Williams

iomap: move loop control code to iter.c

2021-08-17T04:26:33+00:00

Now that we've moved iomap to the iterator model, rename this file to be in sync with the functions contained inside of it. Signed-off-by: Darrick J. Wong Reviewed-by: Dave Chinner

iomap: lift common tracing code from xfs to iomap

2019-10-21T15:51:59+00:00

Lift the xfs code for tracing address space operations to the iomap layer. Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong

iomap: fix Invalid License ID

2019-07-25T09:05:11+00:00

Detected by: $ ./scripts/spdxcheck.py fs/iomap/Makefile: 1:27 Invalid License ID: GPL-2.0-or-newer Fixes: 1c230208f53d ("iomap: start moving code to fs/iomap/") Signed-off-by: Masahiro Yamada Reviewed-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

iomap: move the main iteration code into a separate file

2019-07-17T14:20:43+00:00

Move the main iteration code into a separate file so that we can group related functions in a single file instead of having a single enormous source file. Signed-off-by: Darrick J. Wong Reviewed-by: Christoph Hellwig

iomap: move the buffered IO code into a separate file

2019-07-17T14:16:00+00:00

Move the buffered IO code into a separate file so that we can group related functions in a single file instead of having a single enormous source file. Signed-off-by: Darrick J. Wong Reviewed-by: Christoph Hellwig