The patch titled
eCryptfs: Grab lock on lower_page in ecryptfs_sync_page
has been removed from the -mm tree. Its filename is
ecryptfs-grab-lock-on-lower_page-in-ecryptfs_sync_page.patch
This patch was dropped because it was folded into ecryptfs-fs-makefile-and-fs-kconfig.patch
------------------------------------------------------
Subject: eCryptfs: Grab lock on lower_page in ecryptfs_sync_page
From: Michael Halcrow <mhalcrow@xxxxxxxxxx>
The recent swap of grab_cache_page() with find_get_page() in
ecryptfs_sync_page() missed the fact that we need a lock on the lower page.
This patch replaces find_get_page() with find_lock_page() in order to make
sure that this lock is obtained.
Signed-off-by: Michael Halcrow <mhalcrow@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
fs/ecryptfs/mmap.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff -puN fs/ecryptfs/mmap.c~ecryptfs-grab-lock-on-lower_page-in-ecryptfs_sync_page fs/ecryptfs/mmap.c
--- a/fs/ecryptfs/mmap.c~ecryptfs-grab-lock-on-lower_page-in-ecryptfs_sync_page
+++ a/fs/ecryptfs/mmap.c
@@ -766,9 +766,9 @@ static void ecryptfs_sync_page(struct pa
lower_inode = ecryptfs_inode_to_lower(inode);
/* NOTE: Recently swapped with grab_cache_page(), since
* sync_page() just makes sure that pending I/O gets done. */
- lower_page = find_get_page(lower_inode->i_mapping, page->index);
+ lower_page = find_lock_page(lower_inode->i_mapping, page->index);
if (!lower_page) {
- ecryptfs_printk(KERN_DEBUG, "find_get_page failed\n");
+ ecryptfs_printk(KERN_DEBUG, "find_lock_page failed\n");
return;
}
lower_page->mapping->a_ops->sync_page(lower_page);
_
Patches currently in -mm which might be from mhalcrow@xxxxxxxxxx are
origin.patch
ecryptfs-fs-makefile-and-fs-kconfig.patch
ecryptfs-grab-lock-on-lower_page-in-ecryptfs_sync_page.patch
ecryptfs-enable-plaintext-passthrough.patch
-
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
