f2fs: introduce a bio array for per-page write bios

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The f2fs has three bio types, NODE, DATA, and META, and manages some data
structures per each bio types.

The codes are a little bit messy, thus, this patch introduces a bio array
which groups individual data structures as follows.

struct f2fs_bio_info {
	struct bio *bio;		/* bios to merge */
	sector_t last_block_in_bio;	/* last block number */
	struct mutex io_mutex;		/* mutex for bio */
};

struct f2fs_sb_info {
	...
	struct f2fs_bio_info write_io[NR_PAGE_TYPE];	/* for write bios */
	...
};

The code changes from this new data structure are trivial.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

...

This commit is contained in:

Jaegeuk Kim 2013-11-19 12:47:22 +09:00

parent c11abd1a80

commit 1ff7bd3bb5

3 changed files with 32 additions and 26 deletions

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12

fs/f2fs/f2fs.h

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44

fs/f2fs/segment.c

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2

fs/f2fs/super.c

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