summaryrefslogtreecommitdiffstats
path: root/fs/ext4/super.c
diff options
context:
space:
mode:
authorDaniel Vetter <daniel.vetter@ffwll.ch>2016-12-06 10:26:30 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2016-12-06 10:26:48 +0100
commit75e75cbd55183ff12459666c0a1d3e71fe1481ab (patch)
treea1dc32cc055770736397f9cf9b68f9e176184943 /fs/ext4/super.c
parentdrm/amdgpu: don't add files at control minor debugfs directory (diff)
parentMerge branch 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/g... (diff)
downloadlinux-75e75cbd55183ff12459666c0a1d3e71fe1481ab.tar.xz
linux-75e75cbd55183ff12459666c0a1d3e71fe1481ab.zip
Merge remote-tracking branch 'airlied/drm-next' into drm-misc-next
Backmerge v4.9-rc8 to get at commit e94bd1736f1f60e916a85a80c0b0ebeaae36cce5 Author: Michel Dänzer <michel.daenzer@amd.com> Date: Wed Nov 30 17:30:01 2016 +0900 drm: Don't call drm_for_each_crtc with a non-KMS driver so I can apply Michel's follow-up patch. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Diffstat (limited to 'fs/ext4/super.c')
-rw-r--r--fs/ext4/super.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 20da99da0a34..52b0530c5d65 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3565,7 +3565,15 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
if (blocksize < EXT4_MIN_BLOCK_SIZE ||
blocksize > EXT4_MAX_BLOCK_SIZE) {
ext4_msg(sb, KERN_ERR,
- "Unsupported filesystem blocksize %d", blocksize);
+ "Unsupported filesystem blocksize %d (%d log_block_size)",
+ blocksize, le32_to_cpu(es->s_log_block_size));
+ goto failed_mount;
+ }
+ if (le32_to_cpu(es->s_log_block_size) >
+ (EXT4_MAX_BLOCK_LOG_SIZE - EXT4_MIN_BLOCK_LOG_SIZE)) {
+ ext4_msg(sb, KERN_ERR,
+ "Invalid log block size: %u",
+ le32_to_cpu(es->s_log_block_size));
goto failed_mount;
}
@@ -3697,6 +3705,13 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
"block size (%d)", clustersize, blocksize);
goto failed_mount;
}
+ if (le32_to_cpu(es->s_log_cluster_size) >
+ (EXT4_MAX_CLUSTER_LOG_SIZE - EXT4_MIN_BLOCK_LOG_SIZE)) {
+ ext4_msg(sb, KERN_ERR,
+ "Invalid log cluster size: %u",
+ le32_to_cpu(es->s_log_cluster_size));
+ goto failed_mount;
+ }
sbi->s_cluster_bits = le32_to_cpu(es->s_log_cluster_size) -
le32_to_cpu(es->s_log_block_size);
sbi->s_clusters_per_group =