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authorKirill Korotaev2006-03-11 03:27:13 -0800
committerLinus Torvalds2006-03-11 09:19:34 -0800
commit0adb25d2e71ab047423d6fc63d5d184590d0a66f (patch)
tree0fd00ea22c07c88c3f24085cbf89f0a272f56697 /include
parent8bd0ee93fef9733c72fef1817330b3ee2b71cf9d (diff)
[PATCH] ext3: ext3_symlink should use GFP_NOFS allocations inside
This patch fixes illegal __GFP_FS allocation inside ext3 transaction in ext3_symlink(). Such allocation may re-enter ext3 code from try_to_free_pages. But JBD/ext3 code keeps a pointer to current journal handle in task_struct and, hence, is not reentrable. This bug led to "Assertion failure in journal_dirty_metadata()" messages. http://bugzilla.openvz.org/show_bug.cgi?id=115 Signed-off-by: Andrey Savochkin <saw@saw.sw.com.sg> Signed-off-by: Kirill Korotaev <dev@openvz.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/fs.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 51c0c93bdf93..128d0082522c 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1664,6 +1664,8 @@ extern int vfs_follow_link(struct nameidata *, const char *);
extern int page_readlink(struct dentry *, char __user *, int);
extern void *page_follow_link_light(struct dentry *, struct nameidata *);
extern void page_put_link(struct dentry *, struct nameidata *, void *);
+extern int __page_symlink(struct inode *inode, const char *symname, int len,
+ gfp_t gfp_mask);
extern int page_symlink(struct inode *inode, const char *symname, int len);
extern struct inode_operations page_symlink_inode_operations;
extern int generic_readlink(struct dentry *, char __user *, int);