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| author |   Matthew Wilcox (Oracle) <willy@infradead.org> | 2023-09-14 16:00:05 +0100 |
|---|---|---|
| committer |   Andrew Morton <akpm@linux-foundation.org> | 2023-10-04 10:32:28 -0700 |
| commit | 3ed65f04aac4d1cd025f30ee3fac174bcbf2b018 (patch) | |
| tree | a9ff3d53f9ecccbe486141d76c22de4ec855517f /include/linux/buffer_head.h | |
| parent | buffer: pass GFP flags to folio_alloc_buffers() (diff) | |
| download | wireguard-linux-3ed65f04aac4d1cd025f30ee3fac174bcbf2b018.tar.xz wireguard-linux-3ed65f04aac4d1cd025f30ee3fac174bcbf2b018.zip | |
buffer: hoist GFP flags from grow_dev_page() to __getblk_gfp()
grow_dev_page() is only called by grow_buffers(). grow_buffers() is only
called by __getblk_slow() and __getblk_slow() is only called from
__getblk_gfp(), so it is safe to move the GFP flags setting all the way
up. With that done, add a new bdev_getblk() entry point that leaves the
GFP flags the way the caller specified them.
[willy@infradead.org: fix grow_dev_page() error handling]
Link: https://lkml.kernel.org/r/ZRREEIwqiy5DijKB@casper.infradead.org
Link: https://lkml.kernel.org/r/20230914150011.843330-3-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Hui Zhu <teawater@antgroup.com>
Cc: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux/buffer_head.h')
| -rw-r--r-- | include/linux/buffer_head.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h index 67d94d2be475..7825bb3d63a7 100644 --- a/include/linux/buffer_head.h +++ b/include/linux/buffer_head.h @@ -227,6 +227,8 @@ void __wait_on_buffer(struct buffer_head *); wait_queue_head_t *bh_waitq_head(struct buffer_head *bh); struct buffer_head *__find_get_block(struct block_device *bdev, sector_t block, unsigned size); +struct buffer_head *bdev_getblk(struct block_device *bdev, sector_t block, + unsigned size, gfp_t gfp); struct buffer_head *__getblk_gfp(struct block_device *bdev, sector_t block, unsigned size, gfp_t gfp); void __brelse(struct buffer_head *); |