diff options
| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2021-11-24 21:40:51 +0100 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2021-11-25 13:29:05 -0400 |
| commit | 12d1e2f3c5762df4ad72c75b2464a5b538f12aa9 (patch) | |
| tree | 72f759886f675eb62beb76da6a4a92c6fbaef224 /drivers | |
| parent | 9c3631d17054a8766dbdc1abf8d29306260e7c7f (diff) | |
| download | linux-stable-12d1e2f3c5762df4ad72c75b2464a5b538f12aa9.tar.gz linux-stable-12d1e2f3c5762df4ad72c75b2464a5b538f12aa9.tar.bz2 linux-stable-12d1e2f3c5762df4ad72c75b2464a5b538f12aa9.zip | |
IB/mthca: Use bitmap_zalloc() when applicable
Use 'bitmap_zalloc()' to simplify code, improve the semantic and avoid
some open-coded arithmetic in allocator arguments.
Using the 'zalloc' version of the allocator also saves a now useless
'bitmap_zero()' call.
Also change the corresponding 'kfree()' into 'bitmap_free()' to keep
consistency.
Link: https://lore.kernel.org/r/ea9031e28f453bc179033740f66f0c19293fcf0b.1637785902.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_allocator.c | 6 | ||||
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_mr.c | 12 |
2 files changed, 7 insertions, 11 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_allocator.c b/drivers/infiniband/hw/mthca/mthca_allocator.c index aef1d274a14e..06fc8a2e0bd4 100644 --- a/drivers/infiniband/hw/mthca/mthca_allocator.c +++ b/drivers/infiniband/hw/mthca/mthca_allocator.c @@ -90,12 +90,10 @@ int mthca_alloc_init(struct mthca_alloc *alloc, u32 num, u32 mask, alloc->max = num; alloc->mask = mask; spin_lock_init(&alloc->lock); - alloc->table = kmalloc_array(BITS_TO_LONGS(num), sizeof(long), - GFP_KERNEL); + alloc->table = bitmap_zalloc(num, GFP_KERNEL); if (!alloc->table) return -ENOMEM; - bitmap_zero(alloc->table, num); for (i = 0; i < reserved; ++i) set_bit(i, alloc->table); @@ -104,7 +102,7 @@ int mthca_alloc_init(struct mthca_alloc *alloc, u32 num, u32 mask, void mthca_alloc_cleanup(struct mthca_alloc *alloc) { - kfree(alloc->table); + bitmap_free(alloc->table); } /* diff --git a/drivers/infiniband/hw/mthca/mthca_mr.c b/drivers/infiniband/hw/mthca/mthca_mr.c index ce0e0867e488..8892fcdbac4c 100644 --- a/drivers/infiniband/hw/mthca/mthca_mr.c +++ b/drivers/infiniband/hw/mthca/mthca_mr.c @@ -139,7 +139,7 @@ static void mthca_buddy_free(struct mthca_buddy *buddy, u32 seg, int order) static int mthca_buddy_init(struct mthca_buddy *buddy, int max_order) { - int i, s; + int i; buddy->max_order = max_order; spin_lock_init(&buddy->lock); @@ -152,12 +152,10 @@ static int mthca_buddy_init(struct mthca_buddy *buddy, int max_order) goto err_out; for (i = 0; i <= buddy->max_order; ++i) { - s = BITS_TO_LONGS(1 << (buddy->max_order - i)); - buddy->bits[i] = kmalloc_array(s, sizeof(long), GFP_KERNEL); + buddy->bits[i] = bitmap_zalloc(1 << (buddy->max_order - i), + GFP_KERNEL); if (!buddy->bits[i]) goto err_out_free; - bitmap_zero(buddy->bits[i], - 1 << (buddy->max_order - i)); } set_bit(0, buddy->bits[buddy->max_order]); @@ -167,7 +165,7 @@ static int mthca_buddy_init(struct mthca_buddy *buddy, int max_order) err_out_free: for (i = 0; i <= buddy->max_order; ++i) - kfree(buddy->bits[i]); + bitmap_free(buddy->bits[i]); err_out: kfree(buddy->bits); @@ -181,7 +179,7 @@ static void mthca_buddy_cleanup(struct mthca_buddy *buddy) int i; for (i = 0; i <= buddy->max_order; ++i) - kfree(buddy->bits[i]); + bitmap_free(buddy->bits[i]); kfree(buddy->bits); kfree(buddy->num_free); |