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| author | Naohiro Aota <naohiro.aota@wdc.com> | 2021-02-04 13:21:41 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2021-02-09 02:52:19 +0300 |
| commit | c3b0e880bbfafab6beed92b1ee6db2cdaf4bc54c (patch) | |
| tree | fbcaa3845b00376fada539356d4bf43328d1ac3c /fs/btrfs/zoned.h | |
| parent | ae29333fa644679b96d88c9dd3afbef25cbac0f6 (diff) | |
| download | linux-c3b0e880bbfafab6beed92b1ee6db2cdaf4bc54c.tar.xz | |
iomap: support REQ_OP_ZONE_APPEND
A ZONE_APPEND bio must follow hardware restrictions (e.g. not exceeding
max_zone_append_sectors) not to be split. bio_iov_iter_get_pages builds
such restricted bio using __bio_iov_append_get_pages if bio_op(bio) ==
REQ_OP_ZONE_APPEND.
To utilize it, we need to set the bio_op before calling
bio_iov_iter_get_pages(). This commit introduces IOMAP_F_ZONE_APPEND, so
that iomap user can set the flag to indicate they want REQ_OP_ZONE_APPEND
and restricted bio.
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/zoned.h')
0 files changed, 0 insertions, 0 deletions