diff options
| author | NeilBrown <neilb@suse.com> | 2017-06-18 14:38:57 +1000 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-06-18 12:40:59 -0600 |
| commit | 011067b05668b05aae88e5a24cff0ca0a67ca0b0 (patch) | |
| tree | b56fb4114e8bd71ffd36520f1b4cf7e4e49f1c79 /fs | |
| parent | af67c31fba3b879b241536a48df703a2eee18ebf (diff) | |
blk: replace bioset_create_nobvec() with a flags arg to bioset_create()
"flags" arguments are often seen as good API design as they allow
easy extensibility.
bioset_create_nobvec() is implemented internally as a variation in
flags passed to __bioset_create().
To support future extension, make the internal structure part of the
API.
i.e. add a 'flags' argument to bioset_create() and discard
bioset_create_nobvec().
Note that the bio_split allocations in drivers/md/raid* do not need
the bvec mempool - they should have used bioset_create_nobvec().
Suggested-by: Christoph Hellwig <hch@infradead.org>
Reviewed-by: Christoph Hellwig <hch@infradead.org>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/block_dev.c | 2 | ||||
| -rw-r--r-- | fs/btrfs/extent_io.c | 3 | ||||
| -rw-r--r-- | fs/xfs/xfs_super.c | 3 |
3 files changed, 5 insertions, 3 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c index bcd8e16a34e1..dd91c99e9ba0 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -439,7 +439,7 @@ blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter) static __init int blkdev_init(void) { - blkdev_dio_pool = bioset_create(4, offsetof(struct blkdev_dio, bio)); + blkdev_dio_pool = bioset_create(4, offsetof(struct blkdev_dio, bio), BIOSET_NEED_BVECS); if (!blkdev_dio_pool) return -ENOMEM; return 0; diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 8f66e55e7ba1..19eedf2e630b 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -174,7 +174,8 @@ int __init extent_io_init(void) goto free_state_cache; btrfs_bioset = bioset_create(BIO_POOL_SIZE, - offsetof(struct btrfs_io_bio, bio)); + offsetof(struct btrfs_io_bio, bio), + BIOSET_NEED_BVECS); if (!btrfs_bioset) goto free_buffer_cache; diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 455a575f101d..97df4db13b2e 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -1766,7 +1766,8 @@ STATIC int __init xfs_init_zones(void) { xfs_ioend_bioset = bioset_create(4 * MAX_BUF_PER_PAGE, - offsetof(struct xfs_ioend, io_inline_bio)); + offsetof(struct xfs_ioend, io_inline_bio), + BIOSET_NEED_BVECS); if (!xfs_ioend_bioset) goto out; |