diff options
Diffstat (limited to 'target/linux/generic/pending-4.14')
| -rw-r--r-- | target/linux/generic/pending-4.14/142-jffs2-Fix-use-of-uninitialized-delayed_work-lockdep-.patch | 62 | ||||
| -rw-r--r-- | target/linux/generic/pending-4.14/530-jffs2_make_lzma_available.patch | 2 |
2 files changed, 63 insertions, 1 deletions
diff --git a/target/linux/generic/pending-4.14/142-jffs2-Fix-use-of-uninitialized-delayed_work-lockdep-.patch b/target/linux/generic/pending-4.14/142-jffs2-Fix-use-of-uninitialized-delayed_work-lockdep-.patch new file mode 100644 index 0000000000..05f83ccfc9 --- /dev/null +++ b/target/linux/generic/pending-4.14/142-jffs2-Fix-use-of-uninitialized-delayed_work-lockdep-.patch @@ -0,0 +1,62 @@ +From a788c5272769ddbcdbab297cf386413eeac04463 Mon Sep 17 00:00:00 2001 +From: Daniel Santos <daniel.santos@pobox.com> +Date: Fri, 19 Oct 2018 03:30:20 -0500 +Subject: [PATCH] jffs2: Fix use of uninitialized delayed_work, lockdep + breakage + +jffs2_sync_fs makes the assumption that if CONFIG_JFFS2_FS_WRITEBUFFER +is defined then a write buffer is available and has been initialized. +However, this does is not the case when the mtd device has no +out-of-band buffer: + +int jffs2_nand_flash_setup(struct jffs2_sb_info *c) +{ + if (!c->mtd->oobsize) + return 0; +... + +The resulting call to cancel_delayed_work_sync passing a uninitialized +(but zeroed) delayed_work struct forces lockdep to become disabled. + +[ 90.050639] overlayfs: upper fs does not support tmpfile. +[ 90.652264] INFO: trying to register non-static key. +[ 90.662171] the code is fine but needs lockdep annotation. +[ 90.673090] turning off the locking correctness validator. +[ 90.684021] CPU: 0 PID: 1762 Comm: mount_root Not tainted 4.14.63 #0 +[ 90.696672] Stack : 00000000 00000000 80d8f6a2 00000038 805f0000 80444600 8fe364f4 805dfbe7 +[ 90.713349] 80563a30 000006e2 8068370c 00000001 00000000 00000001 8e2fdc48 ffffffff +[ 90.730020] 00000000 00000000 80d90000 00000000 00000106 00000000 6465746e 312e3420 +[ 90.746690] 6b636f6c 03bf0000 f8000000 20676e69 00000000 80000000 00000000 8e2c2a90 +[ 90.763362] 80d90000 00000001 00000000 8e2c2a90 00000003 80260dc0 08052098 80680000 +[ 90.780033] ... +[ 90.784902] Call Trace: +[ 90.789793] [<8000f0d8>] show_stack+0xb8/0x148 +[ 90.798659] [<8005a000>] register_lock_class+0x270/0x55c +[ 90.809247] [<8005cb64>] __lock_acquire+0x13c/0xf7c +[ 90.818964] [<8005e314>] lock_acquire+0x194/0x1dc +[ 90.828345] [<8003f27c>] flush_work+0x200/0x24c +[ 90.837374] [<80041dfc>] __cancel_work_timer+0x158/0x210 +[ 90.847958] [<801a8770>] jffs2_sync_fs+0x20/0x54 +[ 90.857173] [<80125cf4>] iterate_supers+0xf4/0x120 +[ 90.866729] [<80158fc4>] sys_sync+0x44/0x9c +[ 90.875067] [<80014424>] syscall_common+0x34/0x58 + +Signed-off-by: Daniel Santos <daniel.santos@pobox.com> +Reviewed-by: Hou Tao <houtao1@huawei.com> +Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> +--- + fs/jffs2/super.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +--- a/fs/jffs2/super.c ++++ b/fs/jffs2/super.c +@@ -101,7 +101,8 @@ static int jffs2_sync_fs(struct super_bl + struct jffs2_sb_info *c = JFFS2_SB_INFO(sb); + + #ifdef CONFIG_JFFS2_FS_WRITEBUFFER +- cancel_delayed_work_sync(&c->wbuf_dwork); ++ if (jffs2_is_writebuffered(c)) ++ cancel_delayed_work_sync(&c->wbuf_dwork); + #endif + + mutex_lock(&c->alloc_sem); diff --git a/target/linux/generic/pending-4.14/530-jffs2_make_lzma_available.patch b/target/linux/generic/pending-4.14/530-jffs2_make_lzma_available.patch index 4e1dfbe776..834876fa84 100644 --- a/target/linux/generic/pending-4.14/530-jffs2_make_lzma_available.patch +++ b/target/linux/generic/pending-4.14/530-jffs2_make_lzma_available.patch @@ -244,7 +244,7 @@ Signed-off-by: Alexandros C. Couloumbis <alex@ozo.com> +} --- a/fs/jffs2/super.c +++ b/fs/jffs2/super.c -@@ -370,14 +370,41 @@ static int __init init_jffs2_fs(void) +@@ -371,14 +371,41 @@ static int __init init_jffs2_fs(void) BUILD_BUG_ON(sizeof(struct jffs2_raw_inode) != 68); BUILD_BUG_ON(sizeof(struct jffs2_raw_summary) != 32); |