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authorHugh Dickins <hugh@veritas.com>2005-09-03 15:54:42 -0700
committerLinus Torvalds <torvalds@evo.osdl.org>2005-09-05 00:05:42 -0700
commitdae06ac43d56d23e50a2300d511b32a9e38cd657 (patch)
tree62bfa95e769ec5c731f02435b49025a15c45faf4 /kernel/power
parent5d337b9194b1ce3b6fd5f3cb2799455ed2f9a3d1 (diff)
[PATCH] swap: update swsusp use of swap_info
Aha, swsusp dips into swap_info[], better update it to swap_lock. It's bitflipping flags with 0xFF, so get_swap_page will allocate from only the one chosen device: let's change that to flip SWP_WRITEOK. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel/power')
-rw-r--r--kernel/power/swsusp.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/kernel/power/swsusp.c b/kernel/power/swsusp.c
index f2bc71b9fe8b..975b1648a806 100644
--- a/kernel/power/swsusp.c
+++ b/kernel/power/swsusp.c
@@ -179,9 +179,9 @@ static int swsusp_swap_check(void) /* This is called before saving image */
len=strlen(resume_file);
root_swap = 0xFFFF;
- swap_list_lock();
+ spin_lock(&swap_lock);
for (i=0; i<MAX_SWAPFILES; i++) {
- if (swap_info[i].flags == 0) {
+ if (!(swap_info[i].flags & SWP_WRITEOK)) {
swapfile_used[i]=SWAPFILE_UNUSED;
} else {
if (!len) {
@@ -202,7 +202,7 @@ static int swsusp_swap_check(void) /* This is called before saving image */
}
}
}
- swap_list_unlock();
+ spin_unlock(&swap_lock);
return (root_swap != 0xffff) ? 0 : -ENODEV;
}
@@ -216,12 +216,12 @@ static void lock_swapdevices(void)
{
int i;
- swap_list_lock();
+ spin_lock(&swap_lock);
for (i = 0; i< MAX_SWAPFILES; i++)
if (swapfile_used[i] == SWAPFILE_IGNORED) {
- swap_info[i].flags ^= 0xFF;
+ swap_info[i].flags ^= SWP_WRITEOK;
}
- swap_list_unlock();
+ spin_unlock(&swap_lock);
}
/**