diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2024-06-20 13:02:22 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-06-20 13:49:59 -0700 |
| commit | a6ec08beec9ea93f342d6daeac922208709694dc (patch) | |
| tree | e14f4b7f0133e63a20a27baea37506abeba3bb95 /drivers/block/loop.c | |
| parent | a012f9a752a5856b29610057c76079fbdbe02abf (diff) | |
| parent | d5a7fc58da039903b332041e8c67daae36f08b50 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.
Conflicts:
drivers/net/ethernet/broadcom/bnxt/bnxt.c
1e7962114c10 ("bnxt_en: Restore PTP tx_avail count in case of skb_pad() error")
165f87691a89 ("bnxt_en: add timestamping statistics support")
No adjacent changes.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/block/loop.c')
| -rw-r--r-- | drivers/block/loop.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 93780f41646b..1153721bc7c2 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -302,6 +302,21 @@ static int lo_read_simple(struct loop_device *lo, struct request *rq, return 0; } +static void loop_clear_limits(struct loop_device *lo, int mode) +{ + struct queue_limits lim = queue_limits_start_update(lo->lo_queue); + + if (mode & FALLOC_FL_ZERO_RANGE) + lim.max_write_zeroes_sectors = 0; + + if (mode & FALLOC_FL_PUNCH_HOLE) { + lim.max_hw_discard_sectors = 0; + lim.discard_granularity = 0; + } + + queue_limits_commit_update(lo->lo_queue, &lim); +} + static int lo_fallocate(struct loop_device *lo, struct request *rq, loff_t pos, int mode) { @@ -320,6 +335,14 @@ static int lo_fallocate(struct loop_device *lo, struct request *rq, loff_t pos, ret = file->f_op->fallocate(file, mode, pos, blk_rq_bytes(rq)); if (unlikely(ret && ret != -EINVAL && ret != -EOPNOTSUPP)) return -EIO; + + /* + * We initially configure the limits in a hope that fallocate is + * supported and clear them here if that turns out not to be true. + */ + if (unlikely(ret == -EOPNOTSUPP)) + loop_clear_limits(lo, mode); + return ret; } |