diff options
| author | Lubomir Rintel <lkundrak@v3.sk> | 2010-06-29 15:05:38 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-06-29 15:29:32 -0700 |
| commit | 46c23d7f520e315dde86881b38ba92ebdf34ced5 (patch) | |
| tree | 30a14e15710e9fe9ba38ac667ce7ed5734db3342 /fs/sysv | |
| parent | 926b1e2ca35ccb3cbe0ea9b322c5330869b95046 (diff) | |
| download | linux-stable-46c23d7f520e315dde86881b38ba92ebdf34ced5.tar.gz linux-stable-46c23d7f520e315dde86881b38ba92ebdf34ced5.tar.bz2 linux-stable-46c23d7f520e315dde86881b38ba92ebdf34ced5.zip | |
sysvfs: fix NULL deref. when allocating new inode
A call to sysv_write_inode() in sysv_new_inode() to its new interface that
replaced wait flag with writeback structure. This was broken by
a9185b41a4f84971b930c519f0c63bd450c4810d ("pass writeback_control to
->write_inode").
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: <stable@kernel.org> [2.6.34.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/sysv')
| -rw-r--r-- | fs/sysv/ialloc.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/sysv/ialloc.c b/fs/sysv/ialloc.c index bbd69bdb0fa8..fcc498ec9b33 100644 --- a/fs/sysv/ialloc.c +++ b/fs/sysv/ialloc.c @@ -25,6 +25,7 @@ #include <linux/stat.h> #include <linux/string.h> #include <linux/buffer_head.h> +#include <linux/writeback.h> #include "sysv.h" /* We don't trust the value of @@ -139,6 +140,9 @@ struct inode * sysv_new_inode(const struct inode * dir, mode_t mode) struct inode *inode; sysv_ino_t ino; unsigned count; + struct writeback_control wbc = { + .sync_mode = WB_SYNC_NONE + }; inode = new_inode(sb); if (!inode) @@ -168,7 +172,7 @@ struct inode * sysv_new_inode(const struct inode * dir, mode_t mode) insert_inode_hash(inode); mark_inode_dirty(inode); - sysv_write_inode(inode, 0); /* ensure inode not allocated again */ + sysv_write_inode(inode, &wbc); /* ensure inode not allocated again */ mark_inode_dirty(inode); /* cleared by sysv_write_inode() */ /* That's it. */ unlock_super(sb); |