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authorMatthew Wilcox (Oracle) <willy@infradead.org>2022-06-04 16:39:04 -0400
committerMatthew Wilcox (Oracle) <willy@infradead.org>2022-06-29 08:51:06 -0400
commit1508062ecd5515bcd50e76ceda20d626e8bfe939 (patch)
tree362992f6027d05864de163e161fafc4167c71295 /fs/hugetlbfs
parentbbfe4f66002a1a0816e2f5dd3c87dd76dbfd41e6 (diff)
hugetlbfs: Convert remove_inode_hugepages() to use filemap_get_folios()
Use folios throughout this function. That removes the last caller of huge_pagevec_release(), so delete that too. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Acked-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Diffstat (limited to 'fs/hugetlbfs')
-rw-r--r--fs/hugetlbfs/inode.c44
1 files changed, 14 insertions, 30 deletions
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index ae2524480f23..14d33f725e05 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -108,16 +108,6 @@ static inline void hugetlb_drop_vma_policy(struct vm_area_struct *vma)
}
#endif
-static void huge_pagevec_release(struct pagevec *pvec)
-{
- int i;
-
- for (i = 0; i < pagevec_count(pvec); ++i)
- put_page(pvec->pages[i]);
-
- pagevec_reinit(pvec);
-}
-
/*
* Mask used when checking the page offset value passed in via system
* calls. This value will be converted to a loff_t which is signed.
@@ -480,25 +470,19 @@ static void remove_inode_hugepages(struct inode *inode, loff_t lstart,
struct address_space *mapping = &inode->i_data;
const pgoff_t start = lstart >> huge_page_shift(h);
const pgoff_t end = lend >> huge_page_shift(h);
- struct pagevec pvec;
+ struct folio_batch fbatch;
pgoff_t next, index;
int i, freed = 0;
bool truncate_op = (lend == LLONG_MAX);
- pagevec_init(&pvec);
+ folio_batch_init(&fbatch);
next = start;
- while (next < end) {
- /*
- * When no more pages are found, we are done.
- */
- if (!pagevec_lookup_range(&pvec, mapping, &next, end - 1))
- break;
-
- for (i = 0; i < pagevec_count(&pvec); ++i) {
- struct page *page = pvec.pages[i];
+ while (filemap_get_folios(mapping, &next, end - 1, &fbatch)) {
+ for (i = 0; i < folio_batch_count(&fbatch); ++i) {
+ struct folio *folio = fbatch.folios[i];
u32 hash = 0;
- index = page->index;
+ index = folio->index;
if (!truncate_op) {
/*
* Only need to hold the fault mutex in the
@@ -511,15 +495,15 @@ static void remove_inode_hugepages(struct inode *inode, loff_t lstart,
}
/*
- * If page is mapped, it was faulted in after being
+ * If folio is mapped, it was faulted in after being
* unmapped in caller. Unmap (again) now after taking
* the fault mutex. The mutex will prevent faults
- * until we finish removing the page.
+ * until we finish removing the folio.
*
* This race can only happen in the hole punch case.
* Getting here in a truncate operation is a bug.
*/
- if (unlikely(page_mapped(page))) {
+ if (unlikely(folio_mapped(folio))) {
BUG_ON(truncate_op);
mutex_unlock(&hugetlb_fault_mutex_table[hash]);
@@ -532,7 +516,7 @@ static void remove_inode_hugepages(struct inode *inode, loff_t lstart,
i_mmap_unlock_write(mapping);
}
- lock_page(page);
+ folio_lock(folio);
/*
* We must free the huge page and remove from page
* cache (remove_huge_page) BEFORE removing the
@@ -542,8 +526,8 @@ static void remove_inode_hugepages(struct inode *inode, loff_t lstart,
* the subpool and global reserve usage count can need
* to be adjusted.
*/
- VM_BUG_ON(HPageRestoreReserve(page));
- remove_huge_page(page);
+ VM_BUG_ON(HPageRestoreReserve(&folio->page));
+ remove_huge_page(&folio->page);
freed++;
if (!truncate_op) {
if (unlikely(hugetlb_unreserve_pages(inode,
@@ -551,11 +535,11 @@ static void remove_inode_hugepages(struct inode *inode, loff_t lstart,
hugetlb_fix_reserve_counts(inode);
}
- unlock_page(page);
+ folio_unlock(folio);
if (!truncate_op)
mutex_unlock(&hugetlb_fault_mutex_table[hash]);
}
- huge_pagevec_release(&pvec);
+ folio_batch_release(&fbatch);
cond_resched();
}