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authorMatt Mackall <mpm@selenic.com>2008-02-05 07:29:07 +0100
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-05 18:44:17 +0100
commit1e88328111aae3ea408f346763ba9f9bad71f876 (patch)
tree22be92057a7426ca5b6c8ee9b136bbc417c902a8 /fs/proc/proc_misc.c
parentmaps4: add /proc/kpageflags interface (diff)
downloadlinux-1e88328111aae3ea408f346763ba9f9bad71f876.tar.xz
linux-1e88328111aae3ea408f346763ba9f9bad71f876.zip
maps4: make page monitoring /proc file optional
Make /proc/ page monitoring configurable This puts the following files under an embedded config option: /proc/pid/clear_refs /proc/pid/smaps /proc/pid/pagemap /proc/kpagecount /proc/kpageflags [akpm@linux-foundation.org: Kconfig fix] Signed-off-by: Matt Mackall <mpm@selenic.com> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/proc/proc_misc.c')
-rw-r--r--fs/proc/proc_misc.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index fd751ea37fce..51288db37a0c 100644
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -676,6 +676,7 @@ static const struct file_operations proc_sysrq_trigger_operations = {
};
#endif
+#ifdef CONFIG_PROC_PAGE_MONITOR
#define KPMSIZE sizeof(u64)
#define KPMMASK (KPMSIZE - 1)
/* /proc/kpagecount - an array exposing page counts
@@ -804,6 +805,7 @@ static struct file_operations proc_kpageflags_operations = {
.llseek = mem_lseek,
.read = kpageflags_read,
};
+#endif /* CONFIG_PROC_PAGE_MONITOR */
struct proc_dir_entry *proc_root_kcore;
@@ -885,8 +887,10 @@ void __init proc_misc_init(void)
(size_t)high_memory - PAGE_OFFSET + PAGE_SIZE;
}
#endif
+#ifdef CONFIG_PROC_PAGE_MONITOR
create_seq_entry("kpagecount", S_IRUSR, &proc_kpagecount_operations);
create_seq_entry("kpageflags", S_IRUSR, &proc_kpageflags_operations);
+#endif
#ifdef CONFIG_PROC_VMCORE
proc_vmcore = create_proc_entry("vmcore", S_IRUSR, NULL);
if (proc_vmcore)