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fs/buffer: use sleeping version of __find_get_block()

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Convert to the new nonatomic flavor to benefit from potential performance
benefits and adapt in the future vs migration such that semantics
are kept.

Convert write_boundary_block() which already takes the buffer
lock as well as bdev_getblk() depending on the respective gpf flags.
There are no changes in semantics.

Suggested-by: Jan Kara <jack@suse.cz>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Link: https://kdevops.org/ext4/v6.15-rc2.html # [0]
Link: https://lore.kernel.org/all/aAAEvcrmREWa1SKF@bombadil.infradead.org/ # [1]
Link: https://lore.kernel.org/20250418015921.132400-4-dave@stgolabs.net
Tested-by: kdevops@lists.linux.dev # [0] [1]
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Davidlohr Bueso 2025-04-17 18:59:17 -07:00 committed by Christian Brauner
parent 2814a7d3d2
commit 5b67d43976
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GPG key ID: 91C61BC06578DCA2
1 changed files with 9 additions and 2 deletions
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11
fs/buffer.c
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@ -658,7 +658,9 @@ EXPORT_SYMBOL(generic_buffers_fsync);
void write_boundary_block(struct block_device *bdev,
sector_t bblock, unsigned blocksize)
{
struct buffer_head *bh = __find_get_block(bdev, bblock + 1, blocksize);
struct buffer_head *bh;
bh = __find_get_block_nonatomic(bdev, bblock + 1, blocksize);
if (bh) {
if (buffer_dirty(bh))
write_dirty_buffer(bh, 0);
@ -1440,7 +1442,12 @@ EXPORT_SYMBOL(__find_get_block_nonatomic);
struct buffer_head *bdev_getblk(struct block_device *bdev, sector_t block,
unsigned size, gfp_t gfp)
{
struct buffer_head *bh = __find_get_block(bdev, block, size);
struct buffer_head *bh;
if (gfpflags_allow_blocking(gfp))
bh = __find_get_block_nonatomic(bdev, block, size);
else
bh = __find_get_block(bdev, block, size);
might_alloc(gfp);
if (bh)