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| author | Chao Yu <chao2.yu@samsung.com> | 2014-09-15 18:01:10 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2014-09-23 11:10:20 -0700 |
| commit | 55cf9cb63f0e5439f208d78ed944de9a8df65011 (patch) | |
| tree | 2b15d8458854f0da153d958afe4a339f43bbd996 /fs/f2fs/super.c | |
| parent | 09db6a2ef8d9ca6da71b5de56097e8b769bef299 (diff) | |
| download | blackbird-obmc-linux-55cf9cb63f0e5439f208d78ed944de9a8df65011.tar.gz blackbird-obmc-linux-55cf9cb63f0e5439f208d78ed944de9a8df65011.zip | |
f2fs: support large sector size
Block size in f2fs is 4096 bytes, so theoretically, f2fs can support 4096 bytes
sector device at maximum. But now f2fs only support 512 bytes size sector, so
block device such as zRAM which uses page cache as its block storage space will
not be mounted successfully as mismatch between sector size of zRAM and sector
size of f2fs supported.
In this patch we support large sector size in f2fs, so block device with sector
size of 512/1024/2048/4096 bytes can be supported in f2fs.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/super.c')
| -rw-r--r-- | fs/f2fs/super.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index ed4095e5e8a7..3dfa1b5eae2f 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -788,14 +788,22 @@ static int sanity_check_raw_super(struct super_block *sb, return 1; } - if (le32_to_cpu(raw_super->log_sectorsize) != - F2FS_LOG_SECTOR_SIZE) { - f2fs_msg(sb, KERN_INFO, "Invalid log sectorsize"); + /* Currently, support 512/1024/2048/4096 bytes sector size */ + if (le32_to_cpu(raw_super->log_sectorsize) > + F2FS_MAX_LOG_SECTOR_SIZE || + le32_to_cpu(raw_super->log_sectorsize) < + F2FS_MIN_LOG_SECTOR_SIZE) { + f2fs_msg(sb, KERN_INFO, "Invalid log sectorsize (%u)", + le32_to_cpu(raw_super->log_sectorsize)); return 1; } - if (le32_to_cpu(raw_super->log_sectors_per_block) != - F2FS_LOG_SECTORS_PER_BLOCK) { - f2fs_msg(sb, KERN_INFO, "Invalid log sectors per block"); + if (le32_to_cpu(raw_super->log_sectors_per_block) + + le32_to_cpu(raw_super->log_sectorsize) != + F2FS_MAX_LOG_SECTOR_SIZE) { + f2fs_msg(sb, KERN_INFO, + "Invalid log sectors per block(%u) log sectorsize(%u)", + le32_to_cpu(raw_super->log_sectors_per_block), + le32_to_cpu(raw_super->log_sectorsize)); return 1; } return 0; |
