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-rw-r--r--target/linux/generic/patches-3.10/552-ubifs-respect-silent-mount-flag.patch176
1 files changed, 176 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.10/552-ubifs-respect-silent-mount-flag.patch b/target/linux/generic/patches-3.10/552-ubifs-respect-silent-mount-flag.patch
new file mode 100644
index 0000000..ab89b98
--- /dev/null
+++ b/target/linux/generic/patches-3.10/552-ubifs-respect-silent-mount-flag.patch
@@ -0,0 +1,176 @@
+From 248b89b95d27659c5360ef5b68cca21d096ee909 Mon Sep 17 00:00:00 2001
+From: Daniel Golle <daniel@makrotopia.org>
+Date: Sat, 17 May 2014 03:16:54 +0200
+Subject: [PATCH 3/5] ubifs: respect MS_SILENT mount flag
+To: dedekind1@gmail.com,
+ linux-mtd@lists.infradead.org
+
+When attempting to mount a non-ubifs formatted volume, lots of error
+messages (including a stack dump) are thrown to the kernel log even if
+the MS_SILENT mount flag is set.
+Fix this by checking the MS_SILENT flag in ubifs_read_sb_node and
+passing it down to ubifs_read_node, which now got an additional
+parameter for that purpose.
+
+Signed-off-by: Daniel Golle <daniel@makrotopia.org>
+---
+ fs/ubifs/commit.c | 4 ++--
+ fs/ubifs/io.c | 23 ++++++++++++++---------
+ fs/ubifs/sb.c | 5 +++--
+ fs/ubifs/tnc_misc.c | 4 ++--
+ fs/ubifs/ubifs.h | 2 +-
+ 5 files changed, 22 insertions(+), 16 deletions(-)
+
+diff --git a/fs/ubifs/commit.c b/fs/ubifs/commit.c
+index ff82293..865d13f 100644
+--- a/fs/ubifs/commit.c
++++ b/fs/ubifs/commit.c
+@@ -542,7 +542,7 @@ int dbg_old_index_check_init(struct ubifs_info *c, struct ubifs_zbranch *zroot)
+ if (!idx)
+ return -ENOMEM;
+
+- err = ubifs_read_node(c, idx, UBIFS_IDX_NODE, len, lnum, offs);
++ err = ubifs_read_node(c, idx, UBIFS_IDX_NODE, len, lnum, offs, 0);
+ if (err)
+ goto out;
+
+@@ -610,7 +610,7 @@ int dbg_check_old_index(struct ubifs_info *c, struct ubifs_zbranch *zroot)
+ list_add_tail(&i->list, &list);
+ /* Read the index node */
+ idx = &i->idx;
+- err = ubifs_read_node(c, idx, UBIFS_IDX_NODE, len, lnum, offs);
++ err = ubifs_read_node(c, idx, UBIFS_IDX_NODE, len, lnum, offs, 0);
+ if (err)
+ goto out_free;
+ /* Validate index node */
+diff --git a/fs/ubifs/io.c b/fs/ubifs/io.c
+index e18b988..51c4072 100644
+--- a/fs/ubifs/io.c
++++ b/fs/ubifs/io.c
+@@ -912,7 +912,7 @@ int ubifs_read_node_wbuf(struct ubifs_wbuf *wbuf, void *buf, int type, int len,
+ if (!overlap) {
+ /* We may safely unlock the write-buffer and read the data */
+ spin_unlock(&wbuf->lock);
+- return ubifs_read_node(c, buf, type, len, lnum, offs);
++ return ubifs_read_node(c, buf, type, len, lnum, offs, 0);
+ }
+
+ /* Don't read under wbuf */
+@@ -966,13 +966,14 @@ out:
+ * @len: node length (not aligned)
+ * @lnum: logical eraseblock number
+ * @offs: offset within the logical eraseblock
++ * @silent: suppress error messages
+ *
+ * This function reads a node of known type and and length, checks it and
+ * stores in @buf. Returns zero in case of success, %-EUCLEAN if CRC mismatched
+ * and a negative error code in case of failure.
+ */
+ int ubifs_read_node(const struct ubifs_info *c, void *buf, int type, int len,
+- int lnum, int offs)
++ int lnum, int offs, int silent)
+ {
+ int err, l;
+ struct ubifs_ch *ch = buf;
+@@ -988,30 +989,34 @@ int ubifs_read_node(const struct ubifs_info *c, void *buf, int type, int len,
+ return err;
+
+ if (type != ch->node_type) {
+- ubifs_err("bad node type (%d but expected %d)",
++ if (!silent) ubifs_err("bad node type (%d but expected %d)",
+ ch->node_type, type);
+ goto out;
+ }
+
+ err = ubifs_check_node(c, buf, lnum, offs, 0, 0);
+ if (err) {
+- ubifs_err("expected node type %d", type);
++ if (!silent)
++ ubifs_err("expected node type %d", type);
+ return err;
+ }
+
+ l = le32_to_cpu(ch->len);
+ if (l != len) {
+- ubifs_err("bad node length %d, expected %d", l, len);
++ if (!silent)
++ ubifs_err("bad node length %d, expected %d", l, len);
+ goto out;
+ }
+
+ return 0;
+
+ out:
+- ubifs_err("bad node at LEB %d:%d, LEB mapping status %d", lnum, offs,
+- ubi_is_mapped(c->ubi, lnum));
+- ubifs_dump_node(c, buf);
+- dump_stack();
++ if (!silent) {
++ ubifs_err("bad node at LEB %d:%d, LEB mapping status %d", lnum,
++ offs, ubi_is_mapped(c->ubi, lnum));
++ ubifs_dump_node(c, buf);
++ dump_stack();
++ }
+ return -EINVAL;
+ }
+
+diff --git a/fs/ubifs/sb.c b/fs/ubifs/sb.c
+index 4c37607..b46847d 100644
+--- a/fs/ubifs/sb.c
++++ b/fs/ubifs/sb.c
+@@ -482,14 +482,15 @@ failed:
+ struct ubifs_sb_node *ubifs_read_sb_node(struct ubifs_info *c)
+ {
+ struct ubifs_sb_node *sup;
+- int err;
++ int silent, err;
+
+ sup = kmalloc(ALIGN(UBIFS_SB_NODE_SZ, c->min_io_size), GFP_NOFS);
+ if (!sup)
+ return ERR_PTR(-ENOMEM);
+
++ silent = !!(c->vfs_sb->s_flags & MS_SILENT);
+ err = ubifs_read_node(c, sup, UBIFS_SB_NODE, UBIFS_SB_NODE_SZ,
+- UBIFS_SB_LNUM, 0);
++ UBIFS_SB_LNUM, 0, silent);
+ if (err) {
+ kfree(sup);
+ return ERR_PTR(err);
+diff --git a/fs/ubifs/tnc_misc.c b/fs/ubifs/tnc_misc.c
+index f6bf899..e128689 100644
+--- a/fs/ubifs/tnc_misc.c
++++ b/fs/ubifs/tnc_misc.c
+@@ -280,7 +280,7 @@ static int read_znode(struct ubifs_info *c, int lnum, int offs, int len,
+ if (!idx)
+ return -ENOMEM;
+
+- err = ubifs_read_node(c, idx, UBIFS_IDX_NODE, len, lnum, offs);
++ err = ubifs_read_node(c, idx, UBIFS_IDX_NODE, len, lnum, offs, 0);
+ if (err < 0) {
+ kfree(idx);
+ return err;
+@@ -472,7 +472,7 @@ int ubifs_tnc_read_node(struct ubifs_info *c, struct ubifs_zbranch *zbr,
+ zbr->lnum, zbr->offs);
+ else
+ err = ubifs_read_node(c, node, type, zbr->len, zbr->lnum,
+- zbr->offs);
++ zbr->offs, 0);
+
+ if (err) {
+ dbg_tnck(key, "key ");
+diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
+index e8c8cfe..85fdd11 100644
+--- a/fs/ubifs/ubifs.h
++++ b/fs/ubifs/ubifs.h
+@@ -1481,7 +1481,7 @@ int ubifs_wbuf_write_nolock(struct ubifs_wbuf *wbuf, void *buf, int len);
+ int ubifs_wbuf_seek_nolock(struct ubifs_wbuf *wbuf, int lnum, int offs);
+ int ubifs_wbuf_init(struct ubifs_info *c, struct ubifs_wbuf *wbuf);
+ int ubifs_read_node(const struct ubifs_info *c, void *buf, int type, int len,
+- int lnum, int offs);
++ int lnum, int offs, int silent);
+ int ubifs_read_node_wbuf(struct ubifs_wbuf *wbuf, void *buf, int type, int len,
+ int lnum, int offs);
+ int ubifs_write_node(struct ubifs_info *c, void *node, int len, int lnum,
+--
+1.9.2
+
generated by cgit v1.1 at 2024-07-01 18:51:30 +0000