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authorAl Viro <viro@zeniv.linux.org.uk>2014-02-11 17:49:24 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2014-05-06 17:32:55 -0400
commit7f7f25e82d54870df24d415a7007fbd327da027b (patch)
treebac50bd31cd0582a873e1429271299536fb768bc /drivers/usb/gadget
parentb318891929c2750055a4002bee3e7636ca3684de (diff)
replace checking for ->read/->aio_read presence with check in ->f_mode
Since we are about to introduce new methods (read_iter/write_iter), the tests in a bunch of places would have to grow inconveniently. Check once (at open() time) and store results in ->f_mode as FMODE_CAN_READ and FMODE_CAN_WRITE resp. It might end up being a temporary measure - once everything switches from ->aio_{read,write} to ->{read,write}_iter it might make sense to return to open-coded checks. We'll see... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/usb/gadget')
-rw-r--r--drivers/usb/gadget/storage_common.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/gadget/storage_common.c b/drivers/usb/gadget/storage_common.c
index ec20a1f50c2d..a8898df131ed 100644
--- a/drivers/usb/gadget/storage_common.c
+++ b/drivers/usb/gadget/storage_common.c
@@ -220,11 +220,11 @@ int fsg_lun_open(struct fsg_lun *curlun, const char *filename)
* If we can't read the file, it's no good.
* If we can't write the file, use it read-only.
*/
- if (!(filp->f_op->read || filp->f_op->aio_read)) {
+ if (!(filp->f_mode & FMODE_CAN_READ)) {
LINFO(curlun, "file not readable: %s\n", filename);
goto out;
}
- if (!(filp->f_op->write || filp->f_op->aio_write))
+ if (!(filp->f_mode & FMODE_CAN_WRITE))
ro = 1;
size = i_size_read(inode->i_mapping->host);