summaryrefslogtreecommitdiff
path: root/fs/ext3/resize.c
diff options
context:
space:
mode:
authorJosef Bacik <jbacik@redhat.com>2008-10-18 20:27:55 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-20 08:52:37 -0700
commit972fbf779832e5ad15effa7712789aeff9224c37 (patch)
tree8fba1c79ad44ad871684a3e1b1b638a8625d9495 /fs/ext3/resize.c
parent885e353c7427db7b60692789741b34e605b0b69b (diff)
downloadlwn-972fbf779832e5ad15effa7712789aeff9224c37.tar.gz
lwn-972fbf779832e5ad15effa7712789aeff9224c37.zip
ext3: don't try to resize if there are no reserved gdt blocks left
When trying to resize a ext3 fs and you run out of reserved gdt blocks, you get an error that doesn't actually tell you what went wrong, it just says that the gdb it picked is not correct, which is the case since you don't have any reserved gdt blocks left. This patch adds a check to make sure you have reserved gdt blocks to use, and if not prints out a more relevant error. Signed-off-by: Josef Bacik <jbacik@redhat.com> Cc: <linux-ext4@vger.kernel.org> Cc: Andreas Dilger <adilger@sun.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ext3/resize.c')
-rw-r--r--fs/ext3/resize.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/ext3/resize.c b/fs/ext3/resize.c
index 77278e947e94..78fdf3836370 100644
--- a/fs/ext3/resize.c
+++ b/fs/ext3/resize.c
@@ -790,7 +790,8 @@ int ext3_group_add(struct super_block *sb, struct ext3_new_group_data *input)
if (reserved_gdb || gdb_off == 0) {
if (!EXT3_HAS_COMPAT_FEATURE(sb,
- EXT3_FEATURE_COMPAT_RESIZE_INODE)){
+ EXT3_FEATURE_COMPAT_RESIZE_INODE)
+ || !le16_to_cpu(es->s_reserved_gdt_blocks)) {
ext3_warning(sb, __func__,
"No reserved GDT blocks, can't resize");
return -EPERM;