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| author | Jens Axboe <axboe@kernel.dk> | 2023-03-07 20:45:56 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-03-10 16:47:22 -0800 |
| commit | 438b406055cd21105aad77db7938ee4720b09bee (patch) | |
| tree | d0e450e07c600a067d0ef22578beb28f76368d7c /drivers/net/tun.c | |
| parent | ae913318bcc8ba2a9ae350c16605ea6e5c382a97 (diff) | |
| download | linux-438b406055cd21105aad77db7938ee4720b09bee.tar.gz linux-438b406055cd21105aad77db7938ee4720b09bee.tar.bz2 linux-438b406055cd21105aad77db7938ee4720b09bee.zip | |
tun: flag the device as supporting FMODE_NOWAIT
tun already checks for both O_NONBLOCK and IOCB_NOWAIT in its read
and write iter handlers, so it's fully ready for FMODE_NOWAIT. But
for some reason it doesn't set it. Rectify that oversight.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Link: https://lore.kernel.org/r/3f7dc1f0-79ca-d85c-4d16-8c12c5bd492d@kernel.dk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/tun.c')
| -rw-r--r-- | drivers/net/tun.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index ad653b32b2f0..4c7f74904c25 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -3463,6 +3463,8 @@ static int tun_chr_open(struct inode *inode, struct file * file) sock_set_flag(&tfile->sk, SOCK_ZEROCOPY); + /* tun groks IOCB_NOWAIT just fine, mark it as such */ + file->f_mode |= FMODE_NOWAIT; return 0; } |