diff options
| author |   Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2019-06-07 21:20:40 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-06-09 19:40:10 -0700 |
| commit | 6dcdd884e2a4bb57b0ed3654ff28974ae17d2a08 (patch) | |
| tree | ddf59935f7a1bc272d05ec206fa326329722fa1e /include/net/hwbm.h | |
| parent | tg3: Use napi_alloc_frag() (diff) | |
| download | linux-dev-6dcdd884e2a4bb57b0ed3654ff28974ae17d2a08.tar.xz linux-dev-6dcdd884e2a4bb57b0ed3654ff28974ae17d2a08.zip | |
net: hwbm: Make the hwbm_pool lock a mutex
Based on review, `lock' is only acquired in hwbm_pool_add() which is
invoked via ->probe(), ->resume() and ->ndo_change_mtu(). Based on this
the lock can become a mutex and there is no need to disable interrupts
during the procedure.
Now that the lock is a mutex, hwbm_pool_add() no longer invokes
hwbm_pool_refill() in an atomic context so we can pass GFP_KERNEL to
hwbm_pool_refill() and remove the `gfp' argument from hwbm_pool_add().
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/hwbm.h')
| -rw-r--r-- | include/net/hwbm.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/net/hwbm.h b/include/net/hwbm.h index 89085e2e2da5..81643cf8a1c4 100644 --- a/include/net/hwbm.h +++ b/include/net/hwbm.h @@ -12,18 +12,18 @@ struct hwbm_pool { /* constructor called during alocation */ int (*construct)(struct hwbm_pool *bm_pool, void *buf); /* protect acces to the buffer counter*/ - spinlock_t lock; + struct mutex buf_lock; /* private data */ void *priv; }; #ifdef CONFIG_HWBM void hwbm_buf_free(struct hwbm_pool *bm_pool, void *buf); int hwbm_pool_refill(struct hwbm_pool *bm_pool, gfp_t gfp); -int hwbm_pool_add(struct hwbm_pool *bm_pool, unsigned int buf_num, gfp_t gfp); +int hwbm_pool_add(struct hwbm_pool *bm_pool, unsigned int buf_num); #else void hwbm_buf_free(struct hwbm_pool *bm_pool, void *buf) {} int hwbm_pool_refill(struct hwbm_pool *bm_pool, gfp_t gfp) { return 0; } -int hwbm_pool_add(struct hwbm_pool *bm_pool, unsigned int buf_num, gfp_t gfp) +int hwbm_pool_add(struct hwbm_pool *bm_pool, unsigned int buf_num) { return 0; } #endif /* CONFIG_HWBM */ #endif /* _HWBM_H */ |