diff options
| author | Jan Kara <jack@suse.cz> | 2016-11-04 18:08:12 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-11-04 21:34:47 +0100 |
| commit | f734c89cc96e9b6f903865cd2656d9d8a7e160e7 (patch) | |
| tree | 9c233c6e9a202f9566f3b901e6289ac7c34abf15 /fs/direct-io.c | |
| parent | fs: Provide function to unmap metadata for a range of blocks (diff) | |
| download | linux-f734c89cc96e9b6f903865cd2656d9d8a7e160e7.tar.xz linux-f734c89cc96e9b6f903865cd2656d9d8a7e160e7.zip | |
direct-io: Use clean_bdev_aliases() instead of handmade iteration
Use new provided function instead of an iteration through all allocated
blocks.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'fs/direct-io.c')
| -rw-r--r-- | fs/direct-io.c | 28 |
1 files changed, 7 insertions, 21 deletions
diff --git a/fs/direct-io.c b/fs/direct-io.c index a5138c564019..4ea57edf3e54 100644 --- a/fs/direct-io.c +++ b/fs/direct-io.c @@ -843,24 +843,6 @@ out: } /* - * Clean any dirty buffers in the blockdev mapping which alias newly-created - * file blocks. Only called for S_ISREG files - blockdevs do not set - * buffer_new - */ -static void clean_blockdev_aliases(struct dio *dio, struct buffer_head *map_bh) -{ - unsigned i; - unsigned nblocks; - - nblocks = map_bh->b_size >> dio->inode->i_blkbits; - - for (i = 0; i < nblocks; i++) { - unmap_underlying_metadata(map_bh->b_bdev, - map_bh->b_blocknr + i); - } -} - -/* * If we are not writing the entire block and get_block() allocated * the block for us, we need to fill-in the unused portion of the * block with zeros. This happens only if user-buffer, fileoffset or @@ -960,11 +942,15 @@ static int do_direct_IO(struct dio *dio, struct dio_submit *sdio, goto do_holes; sdio->blocks_available = - map_bh->b_size >> sdio->blkbits; + map_bh->b_size >> blkbits; sdio->next_block_for_io = map_bh->b_blocknr << sdio->blkfactor; - if (buffer_new(map_bh)) - clean_blockdev_aliases(dio, map_bh); + if (buffer_new(map_bh)) { + clean_bdev_aliases( + map_bh->b_bdev, + map_bh->b_blocknr, + map_bh->b_size >> blkbits); + } if (!sdio->blkfactor) goto do_holes; |