From df8081801dc8e6292390fe33198174b6a60d4356 Mon Sep 17 00:00:00 2001 From: "Matthew Wilcox (Oracle)" Date: Tue, 22 Feb 2022 09:45:38 -0500 Subject: f2fs: Convert f2fs_grab_cache_page() to use scoped memory APIs Prevent GFP_FS allocations by using memalloc_nofs_save() instead of AOP_FLAG_NOFS. Signed-off-by: Matthew Wilcox (Oracle) Reviewed-by: Christoph Hellwig --- fs/f2fs/f2fs.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'fs') diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 8c570de21ed5..74929ade4b5e 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -18,6 +18,7 @@ #include #include #include +#include #include #include #include @@ -2654,6 +2655,7 @@ static inline struct page *f2fs_grab_cache_page(struct address_space *mapping, pgoff_t index, bool for_write) { struct page *page; + unsigned int flags; if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) { if (!for_write) @@ -2673,7 +2675,12 @@ static inline struct page *f2fs_grab_cache_page(struct address_space *mapping, if (!for_write) return grab_cache_page(mapping, index); - return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS); + + flags = memalloc_nofs_save(); + page = grab_cache_page_write_begin(mapping, index, 0); + memalloc_nofs_restore(flags); + + return page; } static inline struct page *f2fs_pagecache_get_page( -- cgit v1.2.3