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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-02-22 09:45:38 -0500 |
|---|---|---|
| committer | Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-05-08 14:28:19 -0400 |
| commit | df8081801dc8e6292390fe33198174b6a60d4356 (patch) | |
| tree | b1791c1d2da94506df8eafe726c562fc61c6306a /fs/f2fs | |
| parent | 2d878178baf32dda7eaf6c1de05a42ab19fe4094 (diff) | |
| download | linux-stable-df8081801dc8e6292390fe33198174b6a60d4356.tar.gz linux-stable-df8081801dc8e6292390fe33198174b6a60d4356.tar.bz2 linux-stable-df8081801dc8e6292390fe33198174b6a60d4356.zip | |
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) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/f2fs.h | 9 |
1 files changed, 8 insertions, 1 deletions
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 <linux/kobject.h> #include <linux/sched.h> #include <linux/cred.h> +#include <linux/sched/mm.h> #include <linux/vmalloc.h> #include <linux/bio.h> #include <linux/blkdev.h> @@ -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( |