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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-08-07 13:16:07 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-08-07 13:16:07 +0000 |
| commit | 6b427072c86d5df3f3ee861826cfbd9f08306aff (patch) | |
| tree | a0d639ae6079e84a6b0ff97c38f30fae8693a285 /drivers/block/loop.c | |
| parent | Adding debian version 6.9.10-1. (diff) | |
| download | linux-6b427072c86d5df3f3ee861826cfbd9f08306aff.tar.xz linux-6b427072c86d5df3f3ee861826cfbd9f08306aff.zip | |
Merging upstream version 6.9.11.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.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 28a95fd366..95a468eaa7 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; } |