diff options
Diffstat (limited to 'fs/f2fs/data.c')
| -rw-r--r-- | fs/f2fs/data.c | 19 |
1 files changed, 6 insertions, 13 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index e5dc1ebb5305..cd388e72390b 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -364,9 +364,6 @@ static void f2fs_write_end_io(struct bio *bio) bio_put(bio); } -/* - * Return true, if pre_bio's bdev is same as its target device. - */ struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi, block_t blk_addr, struct bio *bio) { @@ -403,6 +400,9 @@ int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr) return 0; } +/* + * Return true, if pre_bio's bdev is same as its target device. + */ static bool __same_bdev(struct f2fs_sb_info *sbi, block_t blk_addr, struct bio *bio) { @@ -410,9 +410,6 @@ static bool __same_bdev(struct f2fs_sb_info *sbi, return bio->bi_disk == b->bd_disk && bio->bi_partno == b->bd_partno; } -/* - * Low-level block read/write IO operations. - */ static struct bio *__bio_alloc(struct f2fs_io_info *fio, int npages) { struct f2fs_sb_info *sbi = fio->sbi; @@ -1388,13 +1385,9 @@ void __do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock) } /* - * f2fs_map_blocks() now supported readahead/bmap/rw direct_IO with - * f2fs_map_blocks structure. - * If original data blocks are allocated, then give them to blockdev. - * Otherwise, - * a. preallocate requested block addresses - * b. do not use extent cache for better performance - * c. give the block addresses to blockdev + * f2fs_map_blocks() tries to find or build mapping relationship which + * maps continuous logical blocks to physical blocks, and return such + * info via f2fs_map_blocks structure. */ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map, int create, int flag) |