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| author | Josef Bacik <jbacik@redhat.com> | 2008-08-19 22:13:41 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2008-08-19 22:13:41 -0400 |
| commit | 37609fd5ae62db75026d9f53096a1fbc35e040d9 (patch) | |
| tree | e9c021770b73fd407f2caaa38e3db74d4d76a564 | |
| parent | 88aa3cff4e9a38b953de9fbc54c96e619a2bb9f9 (diff) | |
| download | op-kernel-dev-37609fd5ae62db75026d9f53096a1fbc35e040d9.zip op-kernel-dev-37609fd5ae62db75026d9f53096a1fbc35e040d9.tar.gz | |
ext4: don't try to resize if there are no reserved gdt blocks left
When trying to resize an ext4 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: "Theodore Ts'o" <tytso@mit.edu>
| -rw-r--r-- | fs/ext4/resize.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c index 0a92651..b3d3560 100644 --- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -773,7 +773,8 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input) if (reserved_gdb || gdb_off == 0) { if (!EXT4_HAS_COMPAT_FEATURE(sb, - EXT4_FEATURE_COMPAT_RESIZE_INODE)){ + EXT4_FEATURE_COMPAT_RESIZE_INODE) + || !le16_to_cpu(es->s_reserved_gdt_blocks)) { ext4_warning(sb, __func__, "No reserved GDT blocks, can't resize"); return -EPERM; |
