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CIFS: directio read/write cleanups

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Recently introduced strictcache mode brought a new code that can be
efficiently used by directio part. That's let us add vectored operations
and break unnecessary cifs_user_read and cifs_user_write.

Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Pavel Shilovsky
2011-03-10 10:11:05 +03:00
committed by Steve French
parent be8e3b0044
commit 0b81c1c405
3 changed files with 16 additions and 113 deletions
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18
fs/cifs/cifsfs.c
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@@ -760,10 +760,11 @@ const struct file_operations cifs_file_strict_ops = {
};
const struct file_operations cifs_file_direct_ops = {
/* no aio, no readv -
BB reevaluate whether they can be done with directio, no cache */
.read = cifs_user_read,
.write = cifs_user_write,
/* BB reevaluate whether they can be done with directio, no cache */
.read = do_sync_read,
.write = do_sync_write,
.aio_read = cifs_user_readv,
.aio_write = cifs_user_writev,
.open = cifs_open,
.release = cifs_close,
.lock = cifs_lock,
@@ -815,10 +816,11 @@ const struct file_operations cifs_file_strict_nobrl_ops = {
};
const struct file_operations cifs_file_direct_nobrl_ops = {
/* no mmap, no aio, no readv -
BB reevaluate whether they can be done with directio, no cache */
.read = cifs_user_read,
.write = cifs_user_write,
/* BB reevaluate whether they can be done with directio, no cache */
.read = do_sync_read,
.write = do_sync_write,
.aio_read = cifs_user_readv,
.aio_write = cifs_user_writev,
.open = cifs_open,
.release = cifs_close,
.fsync = cifs_fsync,