Re: [PATCH v4 2/4] mm, proc: account for shmem swap in /proc/pid/smaps

From: Vlastimil Babka
Date: Tue Oct 06 2015 - 03:08:14 EST


On 10/03/2015 12:37 AM, Andrew Morton wrote:
On Fri, 2 Oct 2015 15:35:49 +0200 Vlastimil Babka <vbabka@xxxxxxx> wrote:


--- a/include/linux/shmem_fs.h
+++ b/include/linux/shmem_fs.h
@@ -60,6 +60,12 @@ extern struct page *shmem_read_mapping_page_gfp(struct address_space *mapping,
extern void shmem_truncate_range(struct inode *inode, loff_t start, loff_t end);
extern int shmem_unuse(swp_entry_t entry, struct page *page);

+#ifdef CONFIG_SWAP
+extern unsigned long shmem_swap_usage(struct inode *inode);
+extern unsigned long shmem_partial_swap_usage(struct address_space *mapping,
+ pgoff_t start, pgoff_t end);
+#endif

CONFIG_SWAP is wrong, isn't it? It should be CONFIG_SHMEM if anything.

Yeah, I overlooked this while removing the other ifdefs. Thanks.

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