diff options
| -rw-r--r-- | mm/shmem.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/mm/shmem.c b/mm/shmem.c index cb4d7fa389d0..103f3d1040f8 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -571,6 +571,15 @@ static unsigned long shmem_unused_huge_shrink(struct shmem_sb_info *sbinfo, } #endif /* CONFIG_TRANSPARENT_HUGE_PAGECACHE */ +static inline bool is_huge_enabled(struct shmem_sb_info *sbinfo) +{ + if (IS_ENABLED(CONFIG_TRANSPARENT_HUGE_PAGECACHE) && + (shmem_huge == SHMEM_HUGE_FORCE || sbinfo->huge) && + shmem_huge != SHMEM_HUGE_DENY) + return true; + return false; +} + /* * Like add_to_page_cache_locked, but error if expected item has gone. */ @@ -988,6 +997,7 @@ static int shmem_getattr(const struct path *path, struct kstat *stat, { struct inode *inode = path->dentry->d_inode; struct shmem_inode_info *info = SHMEM_I(inode); + struct shmem_sb_info *sb_info = SHMEM_SB(inode->i_sb); if (info->alloced - info->swapped != inode->i_mapping->nrpages) { spin_lock_irq(&info->lock); @@ -995,6 +1005,10 @@ static int shmem_getattr(const struct path *path, struct kstat *stat, spin_unlock_irq(&info->lock); } generic_fillattr(inode, stat); + + if (is_huge_enabled(sb_info)) + stat->blksize = HPAGE_PMD_SIZE; + return 0; } |