From: Robin Dong <sanbai@xxxxxxxxxx>
After "mkfs.ext2 -b 8192" on a new partition, I mount it with a error dmesg:
"error: blocksize is too small"
That's not correct.
Signed-off-by: Robin Dong <sanbai@xxxxxxxxxx>
---
fs/ext2/super.c | 16 +++++++++++++++-
1 files changed, 15 insertions(+), 1 deletions(-)
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 0a78dae..f3008c1 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -758,6 +758,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
unsigned long def_mount_opts;
long ret = -EINVAL;
int blocksize = BLOCK_SIZE;
+ int hblock;
int db_count;
int i, j;
__le32 features;
@@ -893,12 +894,25 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
goto failed_mount;
}
+ hblock = bdev_logical_block_size(sb->s_bdev);
/* If the blocksize doesn't match, re-read the thing.. */
if (sb->s_blocksize != blocksize) {
+ /*
+ * Make sure the blocksize for the filesystem is larger
+ * than the hardware sectorsize for the machine.
+ */
+ if (blocksize < hblock) {
+ ext2_msg(sb, KERN_ERR,
+ "error: fsblocksize %d too small for "
+ "hardware sectorsize %d", blocksize, hblock);
+ goto failed_mount;
+ }
+
brelse(bh);
if (!sb_set_blocksize(sb, blocksize)) {
- ext2_msg(sb, KERN_ERR, "error: blocksize is too small");
+ ext2_msg(sb, KERN_ERR,
+ "error: bad blocksize %d", blocksize);
goto failed_sbi;
}
--
1.7.3.2
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