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authorGreg Kroah-Hartman <gregkh@suse.de>2010-05-21 12:48:55 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2010-05-21 12:48:55 -0700
commitc8d1a126924fcbc1d61ceb830226e0c7afdcc841 (patch)
treed3f3c850481c33b7f433175e83a189f958b1b868 /mm
parentd7dbf4ffee1c7a17e2e5b5f01efe76fbd1671db6 (diff)
parent107c161b7ddeeb7da43509cc6b29211885ccd9af (diff)
Merge staging-next tree into Linus's latest version
Conflicts: drivers/staging/arlan/arlan-main.c drivers/staging/comedi/drivers/cb_das16_cs.c drivers/staging/cx25821/cx25821-alsa.c drivers/staging/dt3155/dt3155_drv.c drivers/staging/hv/hv.c drivers/staging/netwave/netwave_cs.c drivers/staging/wavelan/wavelan.c drivers/staging/wavelan/wavelan_cs.c drivers/staging/wlags49_h2/wl_cs.c This required a bit of hand merging due to the conflicts that happened in the later .34-rc releases, as well as some staging driver changing coming in through other trees (v4l and pcmcia). Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'mm')
-rw-r--r--mm/swapfile.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 6cd0a8f90dc7..f5ccc476aa51 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -574,6 +574,7 @@ static unsigned char swap_entry_free(struct swap_info_struct *p,
/* free if no reference */
if (!usage) {
+ struct gendisk *disk = p->bdev->bd_disk;
if (offset < p->lowest_bit)
p->lowest_bit = offset;
if (offset > p->highest_bit)
@@ -583,6 +584,9 @@ static unsigned char swap_entry_free(struct swap_info_struct *p,
swap_list.next = p->type;
nr_swap_pages++;
p->inuse_pages--;
+ if ((p->flags & SWP_BLKDEV) &&
+ disk->fops->swap_slot_free_notify)
+ disk->fops->swap_slot_free_notify(p->bdev, offset);
}
return usage;
@@ -1884,6 +1888,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
if (error < 0)
goto bad_swap;
p->bdev = bdev;
+ p->flags |= SWP_BLKDEV;
} else if (S_ISREG(inode->i_mode)) {
p->bdev = inode->i_sb->s_bdev;
mutex_lock(&inode->i_mutex);