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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-10-22 17:42:13 -1000 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-10-22 17:42:13 -1000 |
| commit | 9c0c4d24ac000e52d55348961d3a3ba42065e0cf (patch) | |
| tree | 9f35e133de4a4e83d9f9d45ce210d6cdc002195f /block | |
| parent | da4d34b669723508601a4c29daa22cdc669ee005 (diff) | |
| parent | 9fbfabfda25d8774c5a08634fdd2da000a924890 (diff) | |
| download | linux-9c0c4d24ac000e52d55348961d3a3ba42065e0cf.tar.bz2 | |
Merge tag 'block-5.15-2021-10-22' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Fix for the cgroup code not ussing irq safe stats updates, and one fix
for an error handling condition in add_partition()"
* tag 'block-5.15-2021-10-22' of git://git.kernel.dk/linux-block:
block: fix incorrect references to disk objects
blk-cgroup: blk_cgroup_bio_start() should use irq-safe operations on blkg->iostat_cpu
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-cgroup.c | 5 | ||||
| -rw-r--r-- | block/partitions/core.c | 1 |
2 files changed, 4 insertions, 2 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index 38b9f7684952..9a1c5839dd46 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -1897,10 +1897,11 @@ void blk_cgroup_bio_start(struct bio *bio) { int rwd = blk_cgroup_io_type(bio), cpu; struct blkg_iostat_set *bis; + unsigned long flags; cpu = get_cpu(); bis = per_cpu_ptr(bio->bi_blkg->iostat_cpu, cpu); - u64_stats_update_begin(&bis->sync); + flags = u64_stats_update_begin_irqsave(&bis->sync); /* * If the bio is flagged with BIO_CGROUP_ACCT it means this is a split @@ -1912,7 +1913,7 @@ void blk_cgroup_bio_start(struct bio *bio) } bis->cur.ios[rwd]++; - u64_stats_update_end(&bis->sync); + u64_stats_update_end_irqrestore(&bis->sync, flags); if (cgroup_subsys_on_dfl(io_cgrp_subsys)) cgroup_rstat_updated(bio->bi_blkg->blkcg->css.cgroup, cpu); put_cpu(); diff --git a/block/partitions/core.c b/block/partitions/core.c index 58c4c362c94f..7bea19dd9458 100644 --- a/block/partitions/core.c +++ b/block/partitions/core.c @@ -423,6 +423,7 @@ out_del: device_del(pdev); out_put: put_device(pdev); + return ERR_PTR(err); out_put_disk: put_disk(disk); return ERR_PTR(err); |