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authorIngo Molnar <mingo@elte.hu>2012-03-13 16:32:54 +0100
committerIngo Molnar <mingo@elte.hu>2012-03-13 16:33:03 +0100
commitef15eda98217f5183f457e7a2de8b79555ef908b (patch)
treef8f22b48f7bb237c9aa6646175f3e17eeac4af0e /fs/btrfs/disk-io.c
parent5cb4ac3a583d4ee18c8682ab857e093c4a0d0895 (diff)
parentef334a20d84f52407a8a2afd02ddeaecbef0ad3d (diff)
Merge branch 'x86/cleanups' into perf/uprobes
Merge reason: We want to merge a dependent patch. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'fs/btrfs/disk-io.c')
-rw-r--r--fs/btrfs/disk-io.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 811d9f918b1c..534266fe505f 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2260,6 +2260,12 @@ int open_ctree(struct super_block *sb,
goto fail_sb_buffer;
}
+ if (sectorsize < PAGE_SIZE) {
+ printk(KERN_WARNING "btrfs: Incompatible sector size "
+ "found on %s\n", sb->s_id);
+ goto fail_sb_buffer;
+ }
+
mutex_lock(&fs_info->chunk_mutex);
ret = btrfs_read_sys_array(tree_root);
mutex_unlock(&fs_info->chunk_mutex);
@@ -2301,6 +2307,12 @@ int open_ctree(struct super_block *sb,
btrfs_close_extra_devices(fs_devices);
+ if (!fs_devices->latest_bdev) {
+ printk(KERN_CRIT "btrfs: failed to read devices on %s\n",
+ sb->s_id);
+ goto fail_tree_roots;
+ }
+
retry_root_backup:
blocksize = btrfs_level_size(tree_root,
btrfs_super_root_level(disk_super));