diff options
| author | Jason Gunthorpe <jgg@nvidia.com> | 2023-04-04 11:03:24 -0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2023-04-04 11:04:30 -0300 |
| commit | 692d42d411b7db6a76382537fccbee3a12a2bcdb (patch) | |
| tree | 24770529cf173188bc5d2d0d9331c0ac723b631e /fs/btrfs/sysfs.c | |
| parent | c52159b5be7894540acdc7a35791c0b57097fa4c (diff) | |
| parent | 13a0d1ae7ee6b438f5537711a8c60cba00554943 (diff) | |
Merge branch 'iommufd/for-rc' into for-next
The following selftest patch requires both the bug fixes and the
improvements of the selftest framework.
* iommufd/for-rc:
iommufd: Do not corrupt the pfn list when doing batch carry
iommufd: Fix unpinning of pages when an access is present
iommufd: Check for uptr overflow
Linux 6.3-rc5
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'fs/btrfs/sysfs.c')
| -rw-r--r-- | fs/btrfs/sysfs.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c index 8c5efa5813b3..37fc58a7f27e 100644 --- a/fs/btrfs/sysfs.c +++ b/fs/btrfs/sysfs.c @@ -9,6 +9,7 @@ #include <linux/spinlock.h> #include <linux/completion.h> #include <linux/bug.h> +#include <linux/list.h> #include <crypto/hash.h> #include "messages.h" #include "ctree.h" @@ -778,6 +779,45 @@ static ssize_t btrfs_chunk_size_store(struct kobject *kobj, return len; } +static ssize_t btrfs_size_classes_show(struct kobject *kobj, + struct kobj_attribute *a, char *buf) +{ + struct btrfs_space_info *sinfo = to_space_info(kobj); + struct btrfs_block_group *bg; + u32 none = 0; + u32 small = 0; + u32 medium = 0; + u32 large = 0; + + for (int i = 0; i < BTRFS_NR_RAID_TYPES; ++i) { + down_read(&sinfo->groups_sem); + list_for_each_entry(bg, &sinfo->block_groups[i], list) { + if (!btrfs_block_group_should_use_size_class(bg)) + continue; + switch (bg->size_class) { + case BTRFS_BG_SZ_NONE: + none++; + break; + case BTRFS_BG_SZ_SMALL: + small++; + break; + case BTRFS_BG_SZ_MEDIUM: + medium++; + break; + case BTRFS_BG_SZ_LARGE: + large++; + break; + } + } + up_read(&sinfo->groups_sem); + } + return sysfs_emit(buf, "none %u\n" + "small %u\n" + "medium %u\n" + "large %u\n", + none, small, medium, large); +} + #ifdef CONFIG_BTRFS_DEBUG /* * Request chunk allocation with current chunk size. @@ -835,6 +875,7 @@ SPACE_INFO_ATTR(bytes_zone_unusable); SPACE_INFO_ATTR(disk_used); SPACE_INFO_ATTR(disk_total); BTRFS_ATTR_RW(space_info, chunk_size, btrfs_chunk_size_show, btrfs_chunk_size_store); +BTRFS_ATTR(space_info, size_classes, btrfs_size_classes_show); static ssize_t btrfs_sinfo_bg_reclaim_threshold_show(struct kobject *kobj, struct kobj_attribute *a, @@ -887,6 +928,7 @@ static struct attribute *space_info_attrs[] = { BTRFS_ATTR_PTR(space_info, disk_total), BTRFS_ATTR_PTR(space_info, bg_reclaim_threshold), BTRFS_ATTR_PTR(space_info, chunk_size), + BTRFS_ATTR_PTR(space_info, size_classes), #ifdef CONFIG_BTRFS_DEBUG BTRFS_ATTR_PTR(space_info, force_chunk_alloc), #endif |