UBIFS: extend debug/message capabilities
In the case where we have more than one volumes on different UBI
devices, it may be not that easy to tell which volume prints the
messages. Add ubi number and volume id in ubifs_msg/warn/error
to help debug. These two values are passed by struct ubifs_info.
For those where ubifs_info is not initialized yet, ubifs_* is
replaced by pr_*. For those where ubifs_info is not avaliable,
ubifs_info is passed to the calling function as a const parameter.
The output looks like,
[ 95.444879] UBIFS (ubi0:1): background thread "ubifs_bgt0_1" started, PID 696
[ 95.484688] UBIFS (ubi0:1): UBIFS: mounted UBI device 0, volume 1, name "test1"
[ 95.484694] UBIFS (ubi0:1): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
[ 95.484699] UBIFS (ubi0:1): FS size: 30220288 bytes (28 MiB, 238 LEBs), journal size 1523712 bytes (1 MiB, 12 LEBs)
[ 95.484703] UBIFS (ubi0:1): reserved for root: 1427378 bytes (1393 KiB)
[ 95.484709] UBIFS (ubi0:1): media format: w4/r0 (latest is w4/r0), UUID 40DFFC0E-70BE-4193-8905-F7D6DFE60B17, small LPT model
[ 95.489875] UBIFS (ubi1:0): background thread "ubifs_bgt1_0" started, PID 699
[ 95.529713] UBIFS (ubi1:0): UBIFS: mounted UBI device 1, volume 0, name "test2"
[ 95.529718] UBIFS (ubi1:0): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
[ 95.529724] UBIFS (ubi1:0): FS size: 19808256 bytes (18 MiB, 156 LEBs), journal size 1015809 bytes (0 MiB, 8 LEBs)
[ 95.529727] UBIFS (ubi1:0): reserved for root: 935592 bytes (913 KiB)
[ 95.529733] UBIFS (ubi1:0): media format: w4/r0 (latest is w4/r0), UUID EEB7779D-F419-4CA9-811B-831CAC7233D4, small LPT model
[ 954.264767] UBIFS error (ubi1:0 pid 756): ubifs_read_node: bad node type (255 but expected 6)
[ 954.367030] UBIFS error (ubi1:0 pid 756): ubifs_read_node: bad node at LEB 0:0, LEB mapping status 1
Signed-off-by: Sheng Yong <shengyong1@huawei.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c
index a92be24..3659b19 100644
--- a/fs/ubifs/xattr.c
+++ b/fs/ubifs/xattr.c
@@ -108,7 +108,7 @@
.dirtied_ino_d = ALIGN(host_ui->data_len, 8) };
if (host_ui->xattr_cnt >= MAX_XATTRS_PER_INODE) {
- ubifs_err("inode %lu already has too many xattrs (%d), cannot create more",
+ ubifs_err(c, "inode %lu already has too many xattrs (%d), cannot create more",
host->i_ino, host_ui->xattr_cnt);
return -ENOSPC;
}
@@ -120,7 +120,7 @@
*/
names_len = host_ui->xattr_names + host_ui->xattr_cnt + nm->len + 1;
if (names_len > XATTR_LIST_MAX) {
- ubifs_err("cannot add one more xattr name to inode %lu, total names length would become %d, max. is %d",
+ ubifs_err(c, "cannot add one more xattr name to inode %lu, total names length would become %d, max. is %d",
host->i_ino, names_len, XATTR_LIST_MAX);
return -ENOSPC;
}
@@ -288,13 +288,13 @@
inode = ubifs_iget(c->vfs_sb, inum);
if (IS_ERR(inode)) {
- ubifs_err("dead extended attribute entry, error %d",
+ ubifs_err(c, "dead extended attribute entry, error %d",
(int)PTR_ERR(inode));
return inode;
}
if (ubifs_inode(inode)->xattr)
return inode;
- ubifs_err("corrupt extended attribute entry");
+ ubifs_err(c, "corrupt extended attribute entry");
iput(inode);
return ERR_PTR(-EINVAL);
}
@@ -412,7 +412,7 @@
if (buf) {
/* If @buf is %NULL we are supposed to return the length */
if (ui->data_len > size) {
- ubifs_err("buffer size %zd, xattr len %d",
+ ubifs_err(c, "buffer size %zd, xattr len %d",
size, ui->data_len);
err = -ERANGE;
goto out_iput;
@@ -485,7 +485,7 @@
kfree(pxent);
if (err != -ENOENT) {
- ubifs_err("cannot find next direntry, error %d", err);
+ ubifs_err(c, "cannot find next direntry, error %d", err);
return err;
}
@@ -657,8 +657,10 @@
&init_xattrs, 0);
mutex_unlock(&inode->i_mutex);
- if (err)
- ubifs_err("cannot initialize security for inode %lu, error %d",
+ if (err) {
+ struct ubifs_info *c = dentry->i_sb->s_fs_info;
+ ubifs_err(c, "cannot initialize security for inode %lu, error %d",
inode->i_ino, err);
+ }
return err;
}