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| author | Thieu Le <thieule@chromium.org> | 2011-03-08 16:26:03 -0800 |
|---|---|---|
| committer | Tyler Hicks <tyhicks@linux.vnet.ibm.com> | 2011-03-28 01:47:45 -0500 |
| commit | 57db4e8d73ef2b5e94a3f412108dff2576670a8a (patch) | |
| tree | ab6eae8e879cfa41cdb3309d8e6a52de14746ca4 /fs/ecryptfs/super.c | |
| parent | fed8859b3ab94274c986cbdf7d27130e0545f02c (diff) | |
| download | lwn-57db4e8d73ef2b5e94a3f412108dff2576670a8a.tar.gz lwn-57db4e8d73ef2b5e94a3f412108dff2576670a8a.zip | |
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/super.c')
| -rw-r--r-- | fs/ecryptfs/super.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/ecryptfs/super.c b/fs/ecryptfs/super.c index 3042fe123a34..bacc882e1ae4 100644 --- a/fs/ecryptfs/super.c +++ b/fs/ecryptfs/super.c @@ -55,7 +55,6 @@ static struct inode *ecryptfs_alloc_inode(struct super_block *sb) if (unlikely(!inode_info)) goto out; ecryptfs_init_crypt_stat(&inode_info->crypt_stat); - mutex_init(&inode_info->lower_file_mutex); inode_info->lower_file = NULL; inode = &inode_info->vfs_inode; out: @@ -198,7 +197,7 @@ static int ecryptfs_show_options(struct seq_file *m, struct vfsmount *mnt) const struct super_operations ecryptfs_sops = { .alloc_inode = ecryptfs_alloc_inode, .destroy_inode = ecryptfs_destroy_inode, - .drop_inode = generic_delete_inode, + .drop_inode = generic_drop_inode, .statfs = ecryptfs_statfs, .remount_fs = NULL, .evict_inode = ecryptfs_evict_inode, |