Btrfs: Add debugging checks to track down corrupted metadata
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 5b1b608..37a8ea2 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -94,8 +94,8 @@
return 0;
}
-static struct btrfs_device *__find_device(struct list_head *head, u64 devid,
- u8 *uuid)
+static noinline struct btrfs_device *__find_device(struct list_head *head,
+ u64 devid, u8 *uuid)
{
struct btrfs_device *dev;
struct list_head *cur;
@@ -110,7 +110,7 @@
return NULL;
}
-static struct btrfs_fs_devices *find_fsid(u8 *fsid)
+static noinline struct btrfs_fs_devices *find_fsid(u8 *fsid)
{
struct list_head *cur;
struct btrfs_fs_devices *fs_devices;
@@ -134,7 +134,7 @@
* the list if the block device is congested. This way, multiple devices
* can make progress from a single worker thread.
*/
-int run_scheduled_bios(struct btrfs_device *device)
+static int noinline run_scheduled_bios(struct btrfs_device *device)
{
struct bio *pending;
struct backing_dev_info *bdi;
@@ -233,7 +233,7 @@
run_scheduled_bios(device);
}
-static int device_list_add(const char *path,
+static noinline int device_list_add(const char *path,
struct btrfs_super_block *disk_super,
u64 devid, struct btrfs_fs_devices **fs_devices_ret)
{
@@ -480,10 +480,10 @@
* called very infrequently and that a given device has a small number
* of extents
*/
-static int find_free_dev_extent(struct btrfs_trans_handle *trans,
- struct btrfs_device *device,
- struct btrfs_path *path,
- u64 num_bytes, u64 *start)
+static noinline int find_free_dev_extent(struct btrfs_trans_handle *trans,
+ struct btrfs_device *device,
+ struct btrfs_path *path,
+ u64 num_bytes, u64 *start)
{
struct btrfs_key key;
struct btrfs_root *root = device->dev_root;
@@ -645,7 +645,7 @@
return ret;
}
-int btrfs_alloc_dev_extent(struct btrfs_trans_handle *trans,
+int noinline btrfs_alloc_dev_extent(struct btrfs_trans_handle *trans,
struct btrfs_device *device,
u64 chunk_tree, u64 chunk_objectid,
u64 chunk_offset,
@@ -693,7 +693,8 @@
return ret;
}
-static int find_next_chunk(struct btrfs_root *root, u64 objectid, u64 *offset)
+static noinline int find_next_chunk(struct btrfs_root *root,
+ u64 objectid, u64 *offset)
{
struct btrfs_path *path;
int ret;
@@ -735,8 +736,8 @@
return ret;
}
-static int find_next_devid(struct btrfs_root *root, struct btrfs_path *path,
- u64 *objectid)
+static noinline int find_next_devid(struct btrfs_root *root,
+ struct btrfs_path *path, u64 *objectid)
{
int ret;
struct btrfs_key key;
@@ -1103,8 +1104,8 @@
goto out;
}
-int btrfs_update_device(struct btrfs_trans_handle *trans,
- struct btrfs_device *device)
+int noinline btrfs_update_device(struct btrfs_trans_handle *trans,
+ struct btrfs_device *device)
{
int ret;
struct btrfs_path *path;
@@ -1544,8 +1545,8 @@
return 0;
}
-static u64 chunk_bytes_by_type(u64 type, u64 calc_size, int num_stripes,
- int sub_stripes)
+static u64 noinline chunk_bytes_by_type(u64 type, u64 calc_size,
+ int num_stripes, int sub_stripes)
{
if (type & (BTRFS_BLOCK_GROUP_RAID1 | BTRFS_BLOCK_GROUP_DUP))
return calc_size;
@@ -2141,8 +2142,9 @@
* This will add one bio to the pending list for a device and make sure
* the work struct is scheduled.
*/
-int schedule_bio(struct btrfs_root *root, struct btrfs_device *device,
- int rw, struct bio *bio)
+static int noinline schedule_bio(struct btrfs_root *root,
+ struct btrfs_device *device,
+ int rw, struct bio *bio)
{
int should_queue = 1;
