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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/file.c | |
| parent | fed8859b3ab94274c986cbdf7d27130e0545f02c (diff) | |
| download | blackbird-obmc-linux-57db4e8d73ef2b5e94a3f412108dff2576670a8a.tar.gz blackbird-obmc-linux-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/file.c')
| -rw-r--r-- | fs/ecryptfs/file.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c index 7d1050e254f9..cedc913d11ba 100644 --- a/fs/ecryptfs/file.c +++ b/fs/ecryptfs/file.c @@ -273,7 +273,14 @@ static int ecryptfs_release(struct inode *inode, struct file *file) static int ecryptfs_fsync(struct file *file, int datasync) { - return vfs_fsync(ecryptfs_file_to_lower(file), datasync); + int rc = 0; + + rc = generic_file_fsync(file, datasync); + if (rc) + goto out; + rc = vfs_fsync(ecryptfs_file_to_lower(file), datasync); +out: + return rc; } static int ecryptfs_fasync(int fd, struct file *file, int flag) |
