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| author | Bart Van Assche <[email protected]> | 2024-02-02 20:39:25 +0000 |
|---|---|---|
| committer | Christian Brauner <[email protected]> | 2024-02-06 13:31:05 +0000 |
| commit | 449813515d3e5efec85206bb91588a6249a421a3 (patch) | |
| tree | 2328b6cedb4a82d0de3a8089054e6a7be176073f /fs/btrfs/dev-replace.c | |
| parent | fs: Propagate write hints to the struct block_device inode (diff) | |
| download | kernel-449813515d3e5efec85206bb91588a6249a421a3.tar.gz kernel-449813515d3e5efec85206bb91588a6249a421a3.zip | |
block, fs: Restore the per-bio/request data lifetime fields
Restore support for passing data lifetime information from filesystems to
block drivers. This patch reverts commit b179c98f7697 ("block: Remove
request.write_hint") and commit c75e707fe1aa ("block: remove the
per-bio/request write hint").
This patch does not modify the size of struct bio because the new
bi_write_hint member fills a hole in struct bio. pahole reports the
following for struct bio on an x86_64 system with this patch applied:
/* size: 112, cachelines: 2, members: 20 */
/* sum members: 110, holes: 1, sum holes: 2 */
/* last cacheline: 48 bytes */
Reviewed-by: Kanchan Joshi <[email protected]>
Cc: Jens Axboe <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Signed-off-by: Bart Van Assche <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Christian Brauner <[email protected]>
Diffstat (limited to 'fs/btrfs/dev-replace.c')
0 files changed, 0 insertions, 0 deletions