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| author | Christoph Hellwig <hch@lst.de> | 2022-05-05 15:11:09 -0500 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2022-05-16 17:17:32 +0200 |
| commit | 36e8c62273aaa1cb72919212356f2e75e04bcf3c (patch) | |
| tree | ee1c9815f3f74e681a35d0c2db0b4273beecf4b3 /fs | |
| parent | 74e91b12b11560f01d120751d99d91d54b265d3d (diff) | |
| download | linux-stable-36e8c62273aaa1cb72919212356f2e75e04bcf3c.tar.gz linux-stable-36e8c62273aaa1cb72919212356f2e75e04bcf3c.tar.bz2 linux-stable-36e8c62273aaa1cb72919212356f2e75e04bcf3c.zip | |
btrfs: add a btrfs_dio_rw wrapper
Add a wrapper around iomap_dio_rw that keeps the direct I/O internals
isolated in inode.c.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/ctree.h | 4 | ||||
| -rw-r--r-- | fs/btrfs/file.c | 6 | ||||
| -rw-r--r-- | fs/btrfs/inode.c | 10 |
3 files changed, 12 insertions, 8 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 0d1d43f171cc..47e1e79e8bff 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -3359,9 +3359,9 @@ ssize_t btrfs_encoded_read(struct kiocb *iocb, struct iov_iter *iter, ssize_t btrfs_do_encoded_write(struct kiocb *iocb, struct iov_iter *from, const struct btrfs_ioctl_encoded_io_args *encoded); +ssize_t btrfs_dio_rw(struct kiocb *iocb, struct iov_iter *iter, size_t done_before); + extern const struct dentry_operations btrfs_dentry_operations; -extern const struct iomap_ops btrfs_dio_iomap_ops; -extern const struct iomap_dio_ops btrfs_dio_ops; /* Inode locking type flags, by default the exclusive lock is taken */ #define BTRFS_ILOCK_SHARED (1U << 0) diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index b64fb93d9046..46c2baa8fdf5 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -1929,8 +1929,7 @@ relock: */ again: from->nofault = true; - err = iomap_dio_rw(iocb, from, &btrfs_dio_iomap_ops, &btrfs_dio_ops, - IOMAP_DIO_PARTIAL, written); + err = btrfs_dio_rw(iocb, from, written); from->nofault = false; /* No increment (+=) because iomap returns a cumulative value. */ @@ -3693,8 +3692,7 @@ again: */ pagefault_disable(); to->nofault = true; - ret = iomap_dio_rw(iocb, to, &btrfs_dio_iomap_ops, &btrfs_dio_ops, - IOMAP_DIO_PARTIAL, read); + ret = btrfs_dio_rw(iocb, to, read); to->nofault = false; pagefault_enable(); diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 63f71b3097d8..eb951ac52d22 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -8155,15 +8155,21 @@ out_err: btrfs_dio_private_put(dip); } -const struct iomap_ops btrfs_dio_iomap_ops = { +static const struct iomap_ops btrfs_dio_iomap_ops = { .iomap_begin = btrfs_dio_iomap_begin, .iomap_end = btrfs_dio_iomap_end, }; -const struct iomap_dio_ops btrfs_dio_ops = { +static const struct iomap_dio_ops btrfs_dio_ops = { .submit_io = btrfs_submit_direct, }; +ssize_t btrfs_dio_rw(struct kiocb *iocb, struct iov_iter *iter, size_t done_before) +{ + return iomap_dio_rw(iocb, iter, &btrfs_dio_iomap_ops, &btrfs_dio_ops, + IOMAP_DIO_PARTIAL, done_before); +} + static int btrfs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, u64 start, u64 len) { |