mirror of https://github.com/hak5/openwrt-owl.git
kernel: replace a ubifs patch by upstream commit
A modified version of 552-ubifs-respect-silent-mount-flag.patch has been merged upstream. Replace the patch in OpenWrt with the version which has been merged. Signed-off-by: Daniel Golle <daniel@makrotopia.org> SVN-Revision: 41218owl
John Crispin
parent
4d7ed2a8a0
commit
ae8caf216f
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@ -1,100 +1,53 @@
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From 248b89b95d27659c5360ef5b68cca21d096ee909 Mon Sep 17 00:00:00 2001
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From 90bea5a3f0bf680b87b90516f3c231997f4b8f3b Mon Sep 17 00:00:00 2001
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From: Daniel Golle <daniel@makrotopia.org>
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Date: Sat, 17 May 2014 03:16:54 +0200
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Subject: [PATCH 3/5] ubifs: respect MS_SILENT mount flag
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To: dedekind1@gmail.com,
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linux-mtd@lists.infradead.org
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Date: Mon, 2 Jun 2014 15:51:10 +0200
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X-Git-Url: http://git.infradead.org/linux-ubifs.git/commitdiff_plain/90bea5a3f0bf680b87b90516f3c231997f4b8f3b
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X-Git-Url: https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/?id=90bea5a3f0bf680b87b90516f3c231997f4b8f3b
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Subject: UBIFS: respect MS_SILENT mount flag
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When attempting to mount a non-ubifs formatted volume, lots of error
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messages (including a stack dump) are thrown to the kernel log even if
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the MS_SILENT mount flag is set.
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Fix this by checking the MS_SILENT flag in ubifs_read_sb_node and
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passing it down to ubifs_read_node, which now got an additional
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parameter for that purpose.
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Fix this by introducing adding an additional state-variable in
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struct ubifs_info and suppress error messages in ubifs_read_node if
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MS_SILENT is set.
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Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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---
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fs/ubifs/io.c | 18 ++++++++++--------
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fs/ubifs/super.c | 5 +++++
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fs/ubifs/ubifs.h | 11 +++++++++++
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3 files changed, 26 insertions(+), 8 deletions(-)
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---
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fs/ubifs/commit.c | 4 ++--
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fs/ubifs/io.c | 23 ++++++++++++++---------
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fs/ubifs/sb.c | 5 +++--
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fs/ubifs/tnc_misc.c | 4 ++--
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fs/ubifs/ubifs.h | 2 +-
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5 files changed, 22 insertions(+), 16 deletions(-)
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diff --git a/fs/ubifs/commit.c b/fs/ubifs/commit.c
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index ff82293..865d13f 100644
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--- a/fs/ubifs/commit.c
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+++ b/fs/ubifs/commit.c
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@@ -542,7 +542,7 @@ int dbg_old_index_check_init(struct ubifs_info *c, struct ubifs_zbranch *zroot)
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if (!idx)
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return -ENOMEM;
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- err = ubifs_read_node(c, idx, UBIFS_IDX_NODE, len, lnum, offs);
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+ err = ubifs_read_node(c, idx, UBIFS_IDX_NODE, len, lnum, offs, 0);
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if (err)
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goto out;
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@@ -610,7 +610,7 @@ int dbg_check_old_index(struct ubifs_info *c, struct ubifs_zbranch *zroot)
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list_add_tail(&i->list, &list);
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/* Read the index node */
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idx = &i->idx;
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- err = ubifs_read_node(c, idx, UBIFS_IDX_NODE, len, lnum, offs);
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+ err = ubifs_read_node(c, idx, UBIFS_IDX_NODE, len, lnum, offs, 0);
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if (err)
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goto out_free;
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/* Validate index node */
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diff --git a/fs/ubifs/io.c b/fs/ubifs/io.c
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index e18b988..51c4072 100644
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index e18b988..2290d58 100644
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--- a/fs/ubifs/io.c
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+++ b/fs/ubifs/io.c
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@@ -912,7 +912,7 @@ int ubifs_read_node_wbuf(struct ubifs_wbuf *wbuf, void *buf, int type, int len,
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if (!overlap) {
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/* We may safely unlock the write-buffer and read the data */
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spin_unlock(&wbuf->lock);
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- return ubifs_read_node(c, buf, type, len, lnum, offs);
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+ return ubifs_read_node(c, buf, type, len, lnum, offs, 0);
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}
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/* Don't read under wbuf */
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@@ -966,13 +966,14 @@ out:
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* @len: node length (not aligned)
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* @lnum: logical eraseblock number
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* @offs: offset within the logical eraseblock
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+ * @silent: suppress error messages
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*
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* This function reads a node of known type and and length, checks it and
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* stores in @buf. Returns zero in case of success, %-EUCLEAN if CRC mismatched
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* and a negative error code in case of failure.
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*/
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int ubifs_read_node(const struct ubifs_info *c, void *buf, int type, int len,
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- int lnum, int offs)
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+ int lnum, int offs, int silent)
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{
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int err, l;
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struct ubifs_ch *ch = buf;
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@@ -988,30 +989,34 @@ int ubifs_read_node(const struct ubifs_info *c, void *buf, int type, int len,
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@@ -988,30 +988,32 @@ int ubifs_read_node(const struct ubifs_info *c, void *buf, int type, int len,
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return err;
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if (type != ch->node_type) {
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- ubifs_err("bad node type (%d but expected %d)",
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+ if (!silent) ubifs_err("bad node type (%d but expected %d)",
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ch->node_type, type);
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- ch->node_type, type);
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+ ubifs_errc(c, "bad node type (%d but expected %d)",
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+ ch->node_type, type);
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goto out;
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}
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err = ubifs_check_node(c, buf, lnum, offs, 0, 0);
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if (err) {
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- ubifs_err("expected node type %d", type);
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+ if (!silent)
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+ ubifs_err("expected node type %d", type);
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+ ubifs_errc(c, "expected node type %d", type);
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return err;
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}
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l = le32_to_cpu(ch->len);
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if (l != len) {
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- ubifs_err("bad node length %d, expected %d", l, len);
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+ if (!silent)
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+ ubifs_err("bad node length %d, expected %d", l, len);
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+ ubifs_errc(c, "bad node length %d, expected %d", l, len);
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goto out;
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}
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@ -105,72 +58,71 @@ index e18b988..51c4072 100644
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- ubi_is_mapped(c->ubi, lnum));
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- ubifs_dump_node(c, buf);
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- dump_stack();
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+ if (!silent) {
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+ ubifs_err("bad node at LEB %d:%d, LEB mapping status %d", lnum,
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+ offs, ubi_is_mapped(c->ubi, lnum));
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+ ubifs_errc(c, "bad node at LEB %d:%d, LEB mapping status %d", lnum,
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+ offs, ubi_is_mapped(c->ubi, lnum));
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+ if (!c->probing) {
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+ ubifs_dump_node(c, buf);
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+ dump_stack();
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+ }
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return -EINVAL;
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}
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diff --git a/fs/ubifs/sb.c b/fs/ubifs/sb.c
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index 4c37607..b46847d 100644
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--- a/fs/ubifs/sb.c
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+++ b/fs/ubifs/sb.c
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@@ -482,14 +482,15 @@ failed:
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struct ubifs_sb_node *ubifs_read_sb_node(struct ubifs_info *c)
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{
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struct ubifs_sb_node *sup;
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- int err;
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+ int silent, err;
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diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
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index a81c7b5..3904c85 100644
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--- a/fs/ubifs/super.c
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+++ b/fs/ubifs/super.c
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@@ -1149,6 +1149,9 @@ static int mount_ubifs(struct ubifs_info *c)
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size_t sz;
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sup = kmalloc(ALIGN(UBIFS_SB_NODE_SZ, c->min_io_size), GFP_NOFS);
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if (!sup)
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return ERR_PTR(-ENOMEM);
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+ silent = !!(c->vfs_sb->s_flags & MS_SILENT);
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err = ubifs_read_node(c, sup, UBIFS_SB_NODE, UBIFS_SB_NODE_SZ,
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- UBIFS_SB_LNUM, 0);
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+ UBIFS_SB_LNUM, 0, silent);
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if (err) {
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kfree(sup);
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return ERR_PTR(err);
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diff --git a/fs/ubifs/tnc_misc.c b/fs/ubifs/tnc_misc.c
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index f6bf899..e128689 100644
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--- a/fs/ubifs/tnc_misc.c
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+++ b/fs/ubifs/tnc_misc.c
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@@ -280,7 +280,7 @@ static int read_znode(struct ubifs_info *c, int lnum, int offs, int len,
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if (!idx)
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return -ENOMEM;
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- err = ubifs_read_node(c, idx, UBIFS_IDX_NODE, len, lnum, offs);
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+ err = ubifs_read_node(c, idx, UBIFS_IDX_NODE, len, lnum, offs, 0);
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if (err < 0) {
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kfree(idx);
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c->ro_mount = !!(c->vfs_sb->s_flags & MS_RDONLY);
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+ /* Suppress error messages while probing if MS_SILENT is set */
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+ c->probing = !!(c->vfs_sb->s_flags & MS_SILENT);
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+
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err = init_constants_early(c);
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if (err)
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return err;
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@@ -472,7 +472,7 @@ int ubifs_tnc_read_node(struct ubifs_info *c, struct ubifs_zbranch *zbr,
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zbr->lnum, zbr->offs);
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else
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err = ubifs_read_node(c, node, type, zbr->len, zbr->lnum,
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- zbr->offs);
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+ zbr->offs, 0);
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@@ -1214,6 +1217,8 @@ static int mount_ubifs(struct ubifs_info *c)
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if (err)
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goto out_free;
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if (err) {
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dbg_tnck(key, "key ");
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+ c->probing = 0;
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+
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/*
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* Make sure the compressor which is set as default in the superblock
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* or overridden by mount options is actually compiled in.
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diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
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index e8c8cfe..85fdd11 100644
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index e8c8cfe..c1f71fe 100644
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--- a/fs/ubifs/ubifs.h
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+++ b/fs/ubifs/ubifs.h
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@@ -1481,7 +1481,7 @@ int ubifs_wbuf_write_nolock(struct ubifs_wbuf *wbuf, void *buf, int len);
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int ubifs_wbuf_seek_nolock(struct ubifs_wbuf *wbuf, int lnum, int offs);
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int ubifs_wbuf_init(struct ubifs_info *c, struct ubifs_wbuf *wbuf);
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int ubifs_read_node(const struct ubifs_info *c, void *buf, int type, int len,
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- int lnum, int offs);
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+ int lnum, int offs, int silent);
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int ubifs_read_node_wbuf(struct ubifs_wbuf *wbuf, void *buf, int type, int len,
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int lnum, int offs);
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int ubifs_write_node(struct ubifs_info *c, void *node, int len, int lnum,
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--
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1.9.2
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@@ -51,6 +51,15 @@
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#define ubifs_warn(fmt, ...) \
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pr_warn("UBIFS warning (pid %d): %s: " fmt "\n", \
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current->pid, __func__, ##__VA_ARGS__)
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+/*
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+ * A variant of 'ubifs_err()' which takes the UBIFS file-sytem description
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+ * object as an argument.
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+ */
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+#define ubifs_errc(c, fmt, ...) \
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+ do { \
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+ if (!(c)->probing) \
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+ ubifs_err(fmt, ##__VA_ARGS__); \
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+ } while (0)
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/* UBIFS file system VFS magic number */
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#define UBIFS_SUPER_MAGIC 0x24051905
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@@ -1209,6 +1218,7 @@ struct ubifs_debug_info;
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* @need_recovery: %1 if the file-system needs recovery
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* @replaying: %1 during journal replay
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* @mounting: %1 while mounting
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+ * @probing: %1 while attempting to mount if MS_SILENT mount flag is set
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* @remounting_rw: %1 while re-mounting from R/O mode to R/W mode
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* @replay_list: temporary list used during journal replay
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* @replay_buds: list of buds to replay
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@@ -1441,6 +1451,7 @@ struct ubifs_info {
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unsigned int replaying:1;
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unsigned int mounting:1;
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unsigned int remounting_rw:1;
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+ unsigned int probing:1;
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struct list_head replay_list;
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struct list_head replay_buds;
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unsigned long long cs_sqnum;
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@ -1,96 +1,53 @@
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From 248b89b95d27659c5360ef5b68cca21d096ee909 Mon Sep 17 00:00:00 2001
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From 90bea5a3f0bf680b87b90516f3c231997f4b8f3b Mon Sep 17 00:00:00 2001
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From: Daniel Golle <daniel@makrotopia.org>
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Date: Sat, 17 May 2014 03:16:54 +0200
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Subject: [PATCH 3/5] ubifs: respect MS_SILENT mount flag
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To: dedekind1@gmail.com,
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linux-mtd@lists.infradead.org
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Date: Mon, 2 Jun 2014 15:51:10 +0200
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X-Git-Url: http://git.infradead.org/linux-ubifs.git/commitdiff_plain/90bea5a3f0bf680b87b90516f3c231997f4b8f3b
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X-Git-Url: https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/?id=90bea5a3f0bf680b87b90516f3c231997f4b8f3b
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Subject: UBIFS: respect MS_SILENT mount flag
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When attempting to mount a non-ubifs formatted volume, lots of error
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messages (including a stack dump) are thrown to the kernel log even if
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the MS_SILENT mount flag is set.
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Fix this by checking the MS_SILENT flag in ubifs_read_sb_node and
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passing it down to ubifs_read_node, which now got an additional
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parameter for that purpose.
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Fix this by introducing adding an additional state-variable in
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struct ubifs_info and suppress error messages in ubifs_read_node if
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MS_SILENT is set.
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Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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---
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fs/ubifs/commit.c | 4 ++--
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fs/ubifs/io.c | 23 ++++++++++++++---------
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fs/ubifs/sb.c | 5 +++--
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fs/ubifs/tnc_misc.c | 4 ++--
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fs/ubifs/ubifs.h | 2 +-
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5 files changed, 22 insertions(+), 16 deletions(-)
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fs/ubifs/io.c | 18 ++++++++++--------
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fs/ubifs/super.c | 5 +++++
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fs/ubifs/ubifs.h | 11 +++++++++++
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3 files changed, 26 insertions(+), 8 deletions(-)
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--- a/fs/ubifs/commit.c
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+++ b/fs/ubifs/commit.c
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@@ -542,7 +542,7 @@ int dbg_old_index_check_init(struct ubif
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if (!idx)
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return -ENOMEM;
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- err = ubifs_read_node(c, idx, UBIFS_IDX_NODE, len, lnum, offs);
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+ err = ubifs_read_node(c, idx, UBIFS_IDX_NODE, len, lnum, offs, 0);
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if (err)
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goto out;
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@@ -610,7 +610,7 @@ int dbg_check_old_index(struct ubifs_inf
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list_add_tail(&i->list, &list);
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/* Read the index node */
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idx = &i->idx;
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- err = ubifs_read_node(c, idx, UBIFS_IDX_NODE, len, lnum, offs);
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+ err = ubifs_read_node(c, idx, UBIFS_IDX_NODE, len, lnum, offs, 0);
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if (err)
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goto out_free;
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/* Validate index node */
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---
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diff --git a/fs/ubifs/io.c b/fs/ubifs/io.c
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index e18b988..2290d58 100644
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--- a/fs/ubifs/io.c
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+++ b/fs/ubifs/io.c
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@@ -912,7 +912,7 @@ int ubifs_read_node_wbuf(struct ubifs_wb
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if (!overlap) {
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/* We may safely unlock the write-buffer and read the data */
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spin_unlock(&wbuf->lock);
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- return ubifs_read_node(c, buf, type, len, lnum, offs);
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+ return ubifs_read_node(c, buf, type, len, lnum, offs, 0);
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}
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/* Don't read under wbuf */
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@@ -966,13 +966,14 @@ out:
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* @len: node length (not aligned)
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* @lnum: logical eraseblock number
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* @offs: offset within the logical eraseblock
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+ * @silent: suppress error messages
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*
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* This function reads a node of known type and and length, checks it and
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* stores in @buf. Returns zero in case of success, %-EUCLEAN if CRC mismatched
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* and a negative error code in case of failure.
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*/
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int ubifs_read_node(const struct ubifs_info *c, void *buf, int type, int len,
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- int lnum, int offs)
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+ int lnum, int offs, int silent)
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{
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int err, l;
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struct ubifs_ch *ch = buf;
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@@ -988,30 +989,34 @@ int ubifs_read_node(const struct ubifs_i
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@@ -988,30 +988,32 @@ int ubifs_read_node(const struct ubifs_info *c, void *buf, int type, int len,
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return err;
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if (type != ch->node_type) {
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- ubifs_err("bad node type (%d but expected %d)",
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+ if (!silent) ubifs_err("bad node type (%d but expected %d)",
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ch->node_type, type);
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- ch->node_type, type);
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+ ubifs_errc(c, "bad node type (%d but expected %d)",
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+ ch->node_type, type);
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goto out;
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}
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err = ubifs_check_node(c, buf, lnum, offs, 0, 0);
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if (err) {
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- ubifs_err("expected node type %d", type);
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+ if (!silent)
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+ ubifs_err("expected node type %d", type);
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+ ubifs_errc(c, "expected node type %d", type);
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return err;
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}
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l = le32_to_cpu(ch->len);
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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);
|
||||
+ ubifs_errc(c, "bad node length %d, expected %d", l, len);
|
||||
goto out;
|
||||
}
|
||||
|
||||
|
|
@ -101,63 +58,71 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
|
|||
- 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_errc(c, "bad node at LEB %d:%d, LEB mapping status %d", lnum,
|
||||
+ offs, ubi_is_mapped(c->ubi, lnum));
|
||||
+ if (!c->probing) {
|
||||
+ ubifs_dump_node(c, buf);
|
||||
+ dump_stack();
|
||||
+ }
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
--- a/fs/ubifs/sb.c
|
||||
+++ b/fs/ubifs/sb.c
|
||||
@@ -493,14 +493,15 @@ failed:
|
||||
struct ubifs_sb_node *ubifs_read_sb_node(struct ubifs_info *c)
|
||||
{
|
||||
struct ubifs_sb_node *sup;
|
||||
- int err;
|
||||
+ int silent, err;
|
||||
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
|
||||
index a81c7b5..3904c85 100644
|
||||
--- a/fs/ubifs/super.c
|
||||
+++ b/fs/ubifs/super.c
|
||||
@@ -1149,6 +1149,9 @@ static int mount_ubifs(struct ubifs_info *c)
|
||||
size_t sz;
|
||||
|
||||
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);
|
||||
--- a/fs/ubifs/tnc_misc.c
|
||||
+++ b/fs/ubifs/tnc_misc.c
|
||||
@@ -280,7 +280,7 @@ static int read_znode(struct ubifs_info
|
||||
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);
|
||||
c->ro_mount = !!(c->vfs_sb->s_flags & MS_RDONLY);
|
||||
+ /* Suppress error messages while probing if MS_SILENT is set */
|
||||
+ c->probing = !!(c->vfs_sb->s_flags & MS_SILENT);
|
||||
+
|
||||
err = init_constants_early(c);
|
||||
if (err)
|
||||
return err;
|
||||
@@ -472,7 +472,7 @@ int ubifs_tnc_read_node(struct ubifs_inf
|
||||
zbr->lnum, zbr->offs);
|
||||
else
|
||||
err = ubifs_read_node(c, node, type, zbr->len, zbr->lnum,
|
||||
- zbr->offs);
|
||||
+ zbr->offs, 0);
|
||||
@@ -1214,6 +1217,8 @@ static int mount_ubifs(struct ubifs_info *c)
|
||||
if (err)
|
||||
goto out_free;
|
||||
|
||||
if (err) {
|
||||
dbg_tnck(key, "key ");
|
||||
+ c->probing = 0;
|
||||
+
|
||||
/*
|
||||
* Make sure the compressor which is set as default in the superblock
|
||||
* or overridden by mount options is actually compiled in.
|
||||
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
|
||||
index e8c8cfe..c1f71fe 100644
|
||||
--- a/fs/ubifs/ubifs.h
|
||||
+++ b/fs/ubifs/ubifs.h
|
||||
@@ -1481,7 +1481,7 @@ int ubifs_wbuf_write_nolock(struct ubifs
|
||||
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,
|
||||
@@ -51,6 +51,15 @@
|
||||
#define ubifs_warn(fmt, ...) \
|
||||
pr_warn("UBIFS warning (pid %d): %s: " fmt "\n", \
|
||||
current->pid, __func__, ##__VA_ARGS__)
|
||||
+/*
|
||||
+ * A variant of 'ubifs_err()' which takes the UBIFS file-sytem description
|
||||
+ * object as an argument.
|
||||
+ */
|
||||
+#define ubifs_errc(c, fmt, ...) \
|
||||
+ do { \
|
||||
+ if (!(c)->probing) \
|
||||
+ ubifs_err(fmt, ##__VA_ARGS__); \
|
||||
+ } while (0)
|
||||
|
||||
/* UBIFS file system VFS magic number */
|
||||
#define UBIFS_SUPER_MAGIC 0x24051905
|
||||
@@ -1209,6 +1218,7 @@ struct ubifs_debug_info;
|
||||
* @need_recovery: %1 if the file-system needs recovery
|
||||
* @replaying: %1 during journal replay
|
||||
* @mounting: %1 while mounting
|
||||
+ * @probing: %1 while attempting to mount if MS_SILENT mount flag is set
|
||||
* @remounting_rw: %1 while re-mounting from R/O mode to R/W mode
|
||||
* @replay_list: temporary list used during journal replay
|
||||
* @replay_buds: list of buds to replay
|
||||
@@ -1441,6 +1451,7 @@ struct ubifs_info {
|
||||
unsigned int replaying:1;
|
||||
unsigned int mounting:1;
|
||||
unsigned int remounting_rw:1;
|
||||
+ unsigned int probing:1;
|
||||
struct list_head replay_list;
|
||||
struct list_head replay_buds;
|
||||
unsigned long long cs_sqnum;
|
||||
|
|
|
|||
Loading…
Reference in New Issue