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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2008-01-28 23:58:27 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2008-01-28 23:58:27 -0500 |
| commit | ce40733ce93de402ed629762f0e912d9af187cef (patch) | |
| tree | b52c78ac15120151ea688550ba4f6ce619d471c0 /fs/ext4 | |
| parent | cb45bbe44b09f35bb12d67ffa7ecff862608aeae (diff) | |
| download | kernel_samsung_smdk4412-ce40733ce93de402ed629762f0e912d9af187cef.zip kernel_samsung_smdk4412-ce40733ce93de402ed629762f0e912d9af187cef.tar.gz kernel_samsung_smdk4412-ce40733ce93de402ed629762f0e912d9af187cef.tar.bz2 | |
ext4: Check for return value from sb_set_blocksize
sb_set_blocksize validates whether the specfied block size can be used by
the file system. Make sure we fail mounting the file system if the
blocksize specfied cannot be used.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/super.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 00560cf..055a0cd 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1812,7 +1812,6 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent) unsigned long def_mount_opts; struct inode *root; int blocksize; - int hblock; int db_count; int i; int needs_recovery; @@ -1969,20 +1968,16 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent) goto failed_mount; } - hblock = bdev_hardsect_size(sb->s_bdev); if (sb->s_blocksize != blocksize) { - /* - * Make sure the blocksize for the filesystem is larger - * than the hardware sectorsize for the machine. - */ - if (blocksize < hblock) { - printk(KERN_ERR "EXT4-fs: blocksize %d too small for " - "device blocksize %d.\n", blocksize, hblock); + + /* Validate the filesystem blocksize */ + if (!sb_set_blocksize(sb, blocksize)) { + printk(KERN_ERR "EXT4-fs: bad block size %d.\n", + blocksize); goto failed_mount; } brelse (bh); - sb_set_blocksize(sb, blocksize); logical_sb_block = sb_block * EXT4_MIN_BLOCK_SIZE; offset = do_div(logical_sb_block, blocksize); bh = sb_bread(sb, logical_sb_block); |