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-rw-r--r--fs/erofs/internal.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index f8537ffdefeb..354ce3cb2b32 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -332,6 +332,19 @@ static inline unsigned int erofs_inode_datalayout(unsigned int value)
EROFS_I_DATALAYOUT_BITS);
}
+/*
+ * Different from grab_cache_page_nowait(), reclaiming is never triggered
+ * when allocating new pages.
+ */
+static inline
+struct page *erofs_grab_cache_page_nowait(struct address_space *mapping,
+ pgoff_t index)
+{
+ return pagecache_get_page(mapping, index,
+ FGP_LOCK|FGP_CREAT|FGP_NOFS|FGP_NOWAIT,
+ readahead_gfp_mask(mapping) & ~__GFP_RECLAIM);
+}
+
extern const struct super_operations erofs_sops;
extern const struct address_space_operations erofs_raw_access_aops;