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authorThieu Le <thieule@chromium.org>2011-03-08 16:26:03 -0800
committerTyler Hicks <tyhicks@linux.vnet.ibm.com>2011-03-28 01:47:45 -0500
commit57db4e8d73ef2b5e94a3f412108dff2576670a8a (patch)
treeab6eae8e879cfa41cdb3309d8e6a52de14746ca4 /fs/ecryptfs/main.c
parentfed8859b3ab94274c986cbdf7d27130e0545f02c (diff)
ecryptfs: modify write path to encrypt page in writepage
Change the write path to encrypt the data only when the page is written to disk in ecryptfs_writepage. Previously, ecryptfs encrypts the page in ecryptfs_write_end which means that if there are multiple write requests to the same page, ecryptfs ends up re-encrypting that page over and over again. This patch minimizes the number of encryptions needed. Signed-off-by: Thieu Le <thieule@chromium.org> [tyhicks: Changed NULL .drop_inode sop pointer to generic_drop_inode] Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Diffstat (limited to 'fs/ecryptfs/main.c')
-rw-r--r--fs/ecryptfs/main.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c
index 758323a0f09a..63e412cf0fa1 100644
--- a/fs/ecryptfs/main.c
+++ b/fs/ecryptfs/main.c
@@ -122,7 +122,6 @@ int ecryptfs_init_persistent_file(struct dentry *ecryptfs_dentry)
ecryptfs_inode_to_private(ecryptfs_dentry->d_inode);
int rc = 0;
- mutex_lock(&inode_info->lower_file_mutex);
if (!inode_info->lower_file) {
struct dentry *lower_dentry;
struct vfsmount *lower_mnt =
@@ -138,7 +137,6 @@ int ecryptfs_init_persistent_file(struct dentry *ecryptfs_dentry)
inode_info->lower_file = NULL;
}
}
- mutex_unlock(&inode_info->lower_file_mutex);
return rc;
}