diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2014-02-11 17:49:24 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2014-05-06 17:32:55 -0400 |
| commit | 7f7f25e82d54870df24d415a7007fbd327da027b (patch) | |
| tree | bac50bd31cd0582a873e1429271299536fb768bc /drivers/usb/gadget/storage_common.c | |
| parent | b318891929c2750055a4002bee3e7636ca3684de (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/storage_common.c')
| -rw-r--r-- | drivers/usb/gadget/storage_common.c | 4 |
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); |