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| author | Takashi Iwai <tiwai@suse.de> | 2018-07-18 17:42:34 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2018-07-18 17:42:40 +0200 |
| commit | 67ece13ffe862f9d17a144c6cd3feef88a57db13 (patch) | |
| tree | ec2036681d19a9c10b2fad941eb8f58f9eafcfc8 /fs/ext4/ialloc.c | |
| parent | fa84cf094ef9667e2b91c104b0a788fd1896f482 (diff) | |
| parent | 4aaf448fa9754e2d5ee188d32327b24ffc15ca4d (diff) | |
Merge branch 'topic/vga_switcheroo' into for-next
Pull the vga_switcheroo audio client fix.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'fs/ext4/ialloc.c')
| -rw-r--r-- | fs/ext4/ialloc.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index f525f909b559c..fb83750c1a146 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -150,7 +150,16 @@ ext4_read_inode_bitmap(struct super_block *sb, ext4_group_t block_group) } ext4_lock_group(sb, block_group); - if (desc->bg_flags & cpu_to_le16(EXT4_BG_INODE_UNINIT)) { + if (ext4_has_group_desc_csum(sb) && + (desc->bg_flags & cpu_to_le16(EXT4_BG_INODE_UNINIT))) { + if (block_group == 0) { + ext4_unlock_group(sb, block_group); + unlock_buffer(bh); + ext4_error(sb, "Inode bitmap for bg 0 marked " + "uninitialized"); + err = -EFSCORRUPTED; + goto out; + } memset(bh->b_data, 0, (EXT4_INODES_PER_GROUP(sb) + 7) / 8); ext4_mark_bitmap_end(EXT4_INODES_PER_GROUP(sb), sb->s_blocksize * 8, bh->b_data); @@ -994,7 +1003,8 @@ got: /* recheck and clear flag under lock if we still need to */ ext4_lock_group(sb, group); - if (gdp->bg_flags & cpu_to_le16(EXT4_BG_BLOCK_UNINIT)) { + if (ext4_has_group_desc_csum(sb) && + (gdp->bg_flags & cpu_to_le16(EXT4_BG_BLOCK_UNINIT))) { gdp->bg_flags &= cpu_to_le16(~EXT4_BG_BLOCK_UNINIT); ext4_free_group_clusters_set(sb, gdp, ext4_free_clusters_after_init(sb, group, gdp)); |