quota: Change quota error message to print out disk and function name
The current quota error message doesn't always print the disk name, so
it is hard to identify the "bad" disk when quota error happens.
This patch changes the standardized quota error message to print out disk name
and function name. It also uses a combination of cpp macro and inline function
to provide better type checking and to lower the text size of the message.
[Jan Kara: Export __quota_error]
Signed-off-by: Jiaying Zhang <jiayingz@google.com>
Signed-off-by: Jan Kara <jack@suse.cz>
diff --git a/fs/quota/quota_tree.c b/fs/quota/quota_tree.c
index 24f0340..9e48874 100644
--- a/fs/quota/quota_tree.c
+++ b/fs/quota/quota_tree.c
@@ -65,8 +65,7 @@
ret = sb->s_op->quota_write(sb, info->dqi_type, buf,
info->dqi_usable_bs, blk << info->dqi_blocksize_bits);
if (ret != info->dqi_usable_bs) {
- q_warn(KERN_WARNING "VFS: dquota write failed on "
- "dev %s\n", sb->s_id);
+ quota_error(sb, "dquota write failed");
if (ret >= 0)
ret = -EIO;
}
@@ -160,9 +159,8 @@
dh->dqdh_next_free = dh->dqdh_prev_free = cpu_to_le32(0);
/* No matter whether write succeeds block is out of list */
if (write_blk(info, blk, buf) < 0)
- q_warn(KERN_ERR
- "VFS: Can't write block (%u) with free entries.\n",
- blk);
+ quota_error(info->dqi_sb, "Can't write block (%u) "
+ "with free entries", blk);
return 0;
out_buf:
kfree(tmpbuf);
@@ -252,9 +250,8 @@
if (le16_to_cpu(dh->dqdh_entries) + 1 >= qtree_dqstr_in_blk(info)) {
*err = remove_free_dqentry(info, buf, blk);
if (*err < 0) {
- q_warn(KERN_ERR "VFS: find_free_dqentry(): Can't "
- "remove block (%u) from entry free list.\n",
- blk);
+ quota_error(dquot->dq_sb, "Can't remove block (%u) "
+ "from entry free list", blk);
goto out_buf;
}
}
@@ -268,16 +265,15 @@
}
#ifdef __QUOTA_QT_PARANOIA
if (i == qtree_dqstr_in_blk(info)) {
- printk(KERN_ERR "VFS: find_free_dqentry(): Data block full "
- "but it shouldn't.\n");
+ quota_error(dquot->dq_sb, "Data block full but it shouldn't");
*err = -EIO;
goto out_buf;
}
#endif
*err = write_blk(info, blk, buf);
if (*err < 0) {
- q_warn(KERN_ERR "VFS: find_free_dqentry(): Can't write quota "
- "data block %u.\n", blk);
+ quota_error(dquot->dq_sb, "Can't write quota data block %u",
+ blk);
goto out_buf;
}
dquot->dq_off = (blk << info->dqi_blocksize_bits) +
@@ -311,8 +307,8 @@
} else {
ret = read_blk(info, *treeblk, buf);
if (ret < 0) {
- q_warn(KERN_ERR "VFS: Can't read tree quota block "
- "%u.\n", *treeblk);
+ quota_error(dquot->dq_sb, "Can't read tree quota "
+ "block %u", *treeblk);
goto out_buf;
}
}
@@ -323,9 +319,9 @@
if (depth == info->dqi_qtree_depth - 1) {
#ifdef __QUOTA_QT_PARANOIA
if (newblk) {
- printk(KERN_ERR "VFS: Inserting already present quota "
- "entry (block %u).\n",
- le32_to_cpu(ref[get_index(info,
+ quota_error(dquot->dq_sb, "Inserting already present "
+ "quota entry (block %u)",
+ le32_to_cpu(ref[get_index(info,
dquot->dq_id, depth)]));
ret = -EIO;
goto out_buf;
@@ -373,8 +369,8 @@
if (!dquot->dq_off) {
ret = dq_insert_tree(info, dquot);
if (ret < 0) {
- q_warn(KERN_ERR "VFS: Error %zd occurred while "
- "creating quota.\n", ret);
+ quota_error(sb, "Error %zd occurred while creating "
+ "quota", ret);
kfree(ddquot);
return ret;
}
@@ -385,8 +381,7 @@
ret = sb->s_op->quota_write(sb, type, ddquot, info->dqi_entry_size,
dquot->dq_off);
if (ret != info->dqi_entry_size) {
- q_warn(KERN_WARNING "VFS: dquota write failed on dev %s\n",
- sb->s_id);
+ quota_error(sb, "dquota write failed");
if (ret >= 0)
ret = -ENOSPC;
} else {
@@ -410,14 +405,15 @@
if (!buf)
return -ENOMEM;
if (dquot->dq_off >> info->dqi_blocksize_bits != blk) {
- q_warn(KERN_ERR "VFS: Quota structure has offset to other "
- "block (%u) than it should (%u).\n", blk,
- (uint)(dquot->dq_off >> info->dqi_blocksize_bits));
+ quota_error(dquot->dq_sb, "Quota structure has offset to "
+ "other block (%u) than it should (%u)", blk,
+ (uint)(dquot->dq_off >> info->dqi_blocksize_bits));
goto out_buf;
}
ret = read_blk(info, blk, buf);
if (ret < 0) {
- q_warn(KERN_ERR "VFS: Can't read quota data block %u\n", blk);
+ quota_error(dquot->dq_sb, "Can't read quota data block %u",
+ blk);
goto out_buf;
}
dh = (struct qt_disk_dqdbheader *)buf;
@@ -427,8 +423,8 @@
if (ret >= 0)
ret = put_free_dqblk(info, buf, blk);
if (ret < 0) {
- q_warn(KERN_ERR "VFS: Can't move quota data block (%u) "
- "to free list.\n", blk);
+ quota_error(dquot->dq_sb, "Can't move quota data block "
+ "(%u) to free list", blk);
goto out_buf;
}
} else {
@@ -440,15 +436,15 @@
/* Insert will write block itself */
ret = insert_free_dqentry(info, buf, blk);
if (ret < 0) {
- q_warn(KERN_ERR "VFS: Can't insert quota data "
- "block (%u) to free entry list.\n", blk);
+ quota_error(dquot->dq_sb, "Can't insert quota "
+ "data block (%u) to free entry list", blk);
goto out_buf;
}
} else {
ret = write_blk(info, blk, buf);
if (ret < 0) {
- q_warn(KERN_ERR "VFS: Can't write quota data "
- "block %u\n", blk);
+ quota_error(dquot->dq_sb, "Can't write quota "
+ "data block %u", blk);
goto out_buf;
}
}
@@ -472,7 +468,8 @@
return -ENOMEM;
ret = read_blk(info, *blk, buf);
if (ret < 0) {
- q_warn(KERN_ERR "VFS: Can't read quota data block %u\n", *blk);
+ quota_error(dquot->dq_sb, "Can't read quota data "
+ "block %u", blk);
goto out_buf;
}
newblk = le32_to_cpu(ref[get_index(info, dquot->dq_id, depth)]);
@@ -496,8 +493,8 @@
} else {
ret = write_blk(info, *blk, buf);
if (ret < 0)
- q_warn(KERN_ERR "VFS: Can't write quota tree "
- "block %u.\n", *blk);
+ quota_error(dquot->dq_sb, "Can't write quota "
+ "tree block %u", blk);
}
}
out_buf:
@@ -529,7 +526,8 @@
return -ENOMEM;
ret = read_blk(info, blk, buf);
if (ret < 0) {
- q_warn(KERN_ERR "VFS: Can't read quota tree block %u.\n", blk);
+ quota_error(dquot->dq_sb, "Can't read quota tree "
+ "block %u", blk);
goto out_buf;
}
ddquot = buf + sizeof(struct qt_disk_dqdbheader);
@@ -539,8 +537,8 @@
ddquot += info->dqi_entry_size;
}
if (i == qtree_dqstr_in_blk(info)) {
- q_warn(KERN_ERR "VFS: Quota for id %u referenced "
- "but not present.\n", dquot->dq_id);
+ quota_error(dquot->dq_sb, "Quota for id %u referenced "
+ "but not present", dquot->dq_id);
ret = -EIO;
goto out_buf;
} else {
@@ -564,7 +562,8 @@
return -ENOMEM;
ret = read_blk(info, blk, buf);
if (ret < 0) {
- q_warn(KERN_ERR "VFS: Can't read quota tree block %u.\n", blk);
+ quota_error(dquot->dq_sb, "Can't read quota tree block %u",
+ blk);
goto out_buf;
}
ret = 0;
@@ -598,7 +597,7 @@
#ifdef __QUOTA_QT_PARANOIA
/* Invalidated quota? */
if (!sb_dqopt(dquot->dq_sb)->files[type]) {
- printk(KERN_ERR "VFS: Quota invalidated while reading!\n");
+ quota_error(sb, "Quota invalidated while reading!");
return -EIO;
}
#endif
@@ -607,8 +606,8 @@
offset = find_dqentry(info, dquot);
if (offset <= 0) { /* Entry not present? */
if (offset < 0)
- q_warn(KERN_ERR "VFS: Can't read quota "
- "structure for id %u.\n", dquot->dq_id);
+ quota_error(sb, "Can't read quota structure "
+ "for id %u", dquot->dq_id);
dquot->dq_off = 0;
set_bit(DQ_FAKE_B, &dquot->dq_flags);
memset(&dquot->dq_dqb, 0, sizeof(struct mem_dqblk));
@@ -625,8 +624,8 @@
if (ret != info->dqi_entry_size) {
if (ret >= 0)
ret = -EIO;
- q_warn(KERN_ERR "VFS: Error while reading quota "
- "structure for id %u.\n", dquot->dq_id);
+ quota_error(sb, "Error while reading quota structure for id %u",
+ dquot->dq_id);
set_bit(DQ_FAKE_B, &dquot->dq_flags);
memset(&dquot->dq_dqb, 0, sizeof(struct mem_dqblk));
kfree(ddquot);