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authorWu Fengguang <fengguang.wu@intel.com>2009-03-11 09:00:04 +0800
committerGreg Kroah-Hartman <gregkh@suse.de>2009-03-16 17:52:57 -0700
commit3ae64442d1606bc985daf77b55c1d764b1d91c33 (patch)
tree49cf13007bf4afbf14ea0664f49aa603ae7cccb6
parent12f6c7575ef7751cb5ac8b40dc0e477c53426bf9 (diff)
downloadlwn-3ae64442d1606bc985daf77b55c1d764b1d91c33.tar.gz
lwn-3ae64442d1606bc985daf77b55c1d764b1d91c33.zip
proc: fix kflags to uflags copying in /proc/kpageflags
commit ad3bdefe877afb47480418fdb05ecd42842de65e upstream. Fix kpf_copy_bit(src,dst) to be kpf_copy_bit(dst,src) to match the actual call patterns, e.g. kpf_copy_bit(kflags, KPF_LOCKED, PG_locked). This misplacement of src/dst only affected reporting of PG_writeback, PG_reclaim and PG_buddy. For others kflags==uflags so not affected. Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--fs/proc/proc_misc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index 29e20c6b1f7f..dd68a33de624 100644
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -797,7 +797,7 @@ static struct file_operations proc_kpagecount_operations = {
#define KPF_RECLAIM 9
#define KPF_BUDDY 10
-#define kpf_copy_bit(flags, srcpos, dstpos) (((flags >> srcpos) & 1) << dstpos)
+#define kpf_copy_bit(flags, dstpos, srcpos) (((flags >> srcpos) & 1) << dstpos)
static ssize_t kpageflags_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)