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| author | Mina Almasry <almasrymina@google.com> | 2022-05-09 18:20:50 -0700 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-05-13 07:20:05 -0700 |
| commit | 4b25f030ae69ba710eff587cabb4c57cb7e7a8a1 (patch) | |
| tree | f6fd5e402a525be61cf2aaf03f3aeb4569498677 /fs/hugetlbfs | |
| parent | 4f83145721f362c2f4d312edc4755269a2069488 (diff) | |
| download | linux-stable-4b25f030ae69ba710eff587cabb4c57cb7e7a8a1.tar.gz linux-stable-4b25f030ae69ba710eff587cabb4c57cb7e7a8a1.tar.bz2 linux-stable-4b25f030ae69ba710eff587cabb4c57cb7e7a8a1.zip | |
hugetlbfs: fix hugetlbfs_statfs() locking
After commit db71ef79b59b ("hugetlb: make free_huge_page irq safe"), the
subpool lock should be locked with spin_lock_irq() and all call sites was
modified as such, except for the ones in hugetlbfs_statfs().
Link: https://lkml.kernel.org/r/20220429202207.3045-1-almasrymina@google.com
Fixes: db71ef79b59b ("hugetlb: make free_huge_page irq safe")
Signed-off-by: Mina Almasry <almasrymina@google.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'fs/hugetlbfs')
| -rw-r--r-- | fs/hugetlbfs/inode.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index dd3a088db11d..591599829e2a 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -1048,12 +1048,12 @@ static int hugetlbfs_statfs(struct dentry *dentry, struct kstatfs *buf) if (sbinfo->spool) { long free_pages; - spin_lock(&sbinfo->spool->lock); + spin_lock_irq(&sbinfo->spool->lock); buf->f_blocks = sbinfo->spool->max_hpages; free_pages = sbinfo->spool->max_hpages - sbinfo->spool->used_hpages; buf->f_bavail = buf->f_bfree = free_pages; - spin_unlock(&sbinfo->spool->lock); + spin_unlock_irq(&sbinfo->spool->lock); buf->f_files = sbinfo->max_inodes; buf->f_ffree = sbinfo->free_inodes; } |