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>

1 files changed, 6 insertions, 6 deletions

diff --git a/fs/ubifs/tnc_commit.c b/fs/ubifs/tnc_commit.c
index 7a205e0..b45345d 100644
--- a/fs/ubifs/tnc_commit.c
+++ b/fs/ubifs/tnc_commit.c
@@ -53,7 +53,7 @@ static int make_idx_node(struct ubifs_info *c, struct ubifs_idx_node *idx,
 		br->offs = cpu_to_le32(zbr->offs);
 		br->len = cpu_to_le32(zbr->len);
 		if (!zbr->lnum || !zbr->len) {
-			ubifs_err("bad ref in znode");
+			ubifs_err(c, "bad ref in znode");
 			ubifs_dump_znode(c, znode);
 			if (zbr->znode)
 				ubifs_dump_znode(c, zbr->znode);
@@ -384,7 +384,7 @@ static int layout_in_gaps(struct ubifs_info *c, int cnt)
 				 * Do not print scary warnings if the debugging
 				 * option which forces in-the-gaps is enabled.
 				 */
-				ubifs_warn("out of space");
+				ubifs_warn(c, "out of space");
 				ubifs_dump_budg(c, &c->bi);
 				ubifs_dump_lprops(c);
 			}
@@ -441,7 +441,7 @@ static int layout_in_empty_space(struct ubifs_info *c)
 		/* Determine the index node position */
 		if (lnum == -1) {
 			if (c->ileb_nxt >= c->ileb_cnt) {
-				ubifs_err("out of space");
+				ubifs_err(c, "out of space");
 				return -ENOSPC;
 			}
 			lnum = c->ilebs[c->ileb_nxt++];
@@ -855,7 +855,7 @@ static int write_index(struct ubifs_info *c)
 			br->offs = cpu_to_le32(zbr->offs);
 			br->len = cpu_to_le32(zbr->len);
 			if (!zbr->lnum || !zbr->len) {
-				ubifs_err("bad ref in znode");
+				ubifs_err(c, "bad ref in znode");
 				ubifs_dump_znode(c, znode);
 				if (zbr->znode)
 					ubifs_dump_znode(c, zbr->znode);
@@ -875,7 +875,7 @@ static int write_index(struct ubifs_info *c)
 
 		if (lnum != znode->lnum || offs != znode->offs ||
 		    len != znode->len) {
-			ubifs_err("inconsistent znode posn");
+			ubifs_err(c, "inconsistent znode posn");
 			return -EINVAL;
 		}
 
@@ -973,7 +973,7 @@ static int write_index(struct ubifs_info *c)
 
 	if (lnum != c->dbg->new_ihead_lnum ||
 	    buf_offs != c->dbg->new_ihead_offs) {
-		ubifs_err("inconsistent ihead");
+		ubifs_err(c, "inconsistent ihead");
 		return -EINVAL;
 	}