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f2fs: use F2FS_BLKSIZE to judge bloksize and page_cache_size

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In some system PAGE_CACHE_SIZE isn't 4K. So using F2FS_BLKSIZE to judge.

By Jaegeuk Kim:
 o f2fs does not support no other 4KB page cache size.

Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This commit is contained in:
majianpeng 2013-02-01 19:07:57 +08:00 committed by Jaegeuk Kim
parent f83759e283
commit 5c9b469295
1 changed files with 10 additions and 1 deletions
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11
fs/f2fs/super.c
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@ -384,14 +384,23 @@ static int sanity_check_raw_super(struct super_block *sb,
return 1; return 1;
} }
/* Currently, support only 4KB page cache size */
if (F2FS_BLKSIZE != PAGE_CACHE_SIZE) {
f2fs_msg(sb, KERN_INFO,
"Invalid page_cache_size (%u), supports only 4KB\n",
PAGE_CACHE_SIZE);
return 1;
}
/* Currently, support only 4KB block size */ /* Currently, support only 4KB block size */
blocksize = 1 << le32_to_cpu(raw_super->log_blocksize); blocksize = 1 << le32_to_cpu(raw_super->log_blocksize);
if (blocksize != PAGE_CACHE_SIZE) { if (blocksize != F2FS_BLKSIZE) {
f2fs_msg(sb, KERN_INFO, f2fs_msg(sb, KERN_INFO,
"Invalid blocksize (%u), supports only 4KB\n", "Invalid blocksize (%u), supports only 4KB\n",
blocksize); blocksize);
return 1; return 1;
} }
if (le32_to_cpu(raw_super->log_sectorsize) != if (le32_to_cpu(raw_super->log_sectorsize) !=
F2FS_LOG_SECTOR_SIZE) { F2FS_LOG_SECTOR_SIZE) {
f2fs_msg(sb, KERN_INFO, "Invalid log sectorsize"); f2fs_msg(sb, KERN_INFO, "Invalid log sectorsize");