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| author | Chao Yu <chao2.yu@samsung.com> | 2013-09-22 15:50:50 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-09-24 17:45:48 +0900 |
| commit | cc7b1bb173676621b092b61d22d8d12b05efb5e8 (patch) | |
| tree | 440612ad80fa325aa3a5b316b5f25d87ff6a0f81 /fs/f2fs | |
| parent | a57e564d14d9d123b2dd4ff1c933da0d900e0b1d (diff) | |
| download | op-kernel-dev-cc7b1bb173676621b092b61d22d8d12b05efb5e8.zip op-kernel-dev-cc7b1bb173676621b092b61d22d8d12b05efb5e8.tar.gz | |
f2fs: avoid allocating failure in bio_alloc
This patch add macro MAX_BIO_BLOCKS to limit value of npages in
f2fs_bio_alloc, it can avoid allocating failure in bio_alloc caused by
npages is larger than BIO_MAX_PAGES.
Signed-off-by: Yu Chao <chao2.yu@samsung.com>
Reviewed-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/segment.c | 4 | ||||
| -rw-r--r-- | fs/f2fs/segment.h | 2 |
2 files changed, 5 insertions, 1 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 09af9c7..bd79bbe 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -657,6 +657,7 @@ static void submit_write_page(struct f2fs_sb_info *sbi, struct page *page, block_t blk_addr, enum page_type type) { struct block_device *bdev = sbi->sb->s_bdev; + int bio_blocks; verify_block_addr(sbi, blk_addr); @@ -676,7 +677,8 @@ retry: goto retry; } - sbi->bio[type] = f2fs_bio_alloc(bdev, max_hw_blocks(sbi)); + bio_blocks = MAX_BIO_BLOCKS(max_hw_blocks(sbi)); + sbi->bio[type] = f2fs_bio_alloc(bdev, bio_blocks); sbi->bio[type]->bi_sector = SECTOR_FROM_BLOCK(sbi, blk_addr); sbi->bio[type]->bi_private = priv; /* diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h index bdd10ea..7f94d78 100644 --- a/fs/f2fs/segment.h +++ b/fs/f2fs/segment.h @@ -90,6 +90,8 @@ (blk_addr << ((sbi)->log_blocksize - F2FS_LOG_SECTOR_SIZE)) #define SECTOR_TO_BLOCK(sbi, sectors) \ (sectors >> ((sbi)->log_blocksize - F2FS_LOG_SECTOR_SIZE)) +#define MAX_BIO_BLOCKS(max_hw_blocks) \ + (min((int)max_hw_blocks, BIO_MAX_PAGES)) /* during checkpoint, bio_private is used to synchronize the last bio */ struct bio_private { |
