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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2007-01-05 16:36:28 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2007-01-05 23:55:22 -0800 |
| commit | 7bf236874292fd073c6bdd27f89c3d9e81a79cbc (patch) | |
| tree | 27e4196e4b720c113010d544567f76f181c11428 /mm/swapfile.c | |
| parent | 3223ea8cca5936b8e78450dd5b8ba88372e9c0a8 (diff) | |
| download | lwn-7bf236874292fd073c6bdd27f89c3d9e81a79cbc.tar.gz lwn-7bf236874292fd073c6bdd27f89c3d9e81a79cbc.zip | |
[PATCH] swsusp: Do not fail if resume device is not set
In the kernels later than 2.6.19 there is a regression that makes swsusp
fail if the resume device is not explicitly specified.
It can be fixed by adding an additional parameter to
mm/swapfile.c:swap_type_of() allowing us to pass the (struct block_device
*) corresponding to the first available swap back to the caller.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/swapfile.c')
| -rw-r--r-- | mm/swapfile.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c index b9fc0e5de6d5..a2d9bb4e80df 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -434,7 +434,7 @@ void free_swap_and_cache(swp_entry_t entry) * * This is needed for the suspend to disk (aka swsusp). */ -int swap_type_of(dev_t device, sector_t offset) +int swap_type_of(dev_t device, sector_t offset, struct block_device **bdev_p) { struct block_device *bdev = NULL; int i; @@ -450,6 +450,9 @@ int swap_type_of(dev_t device, sector_t offset) continue; if (!bdev) { + if (bdev_p) + *bdev_p = sis->bdev; + spin_unlock(&swap_lock); return i; } @@ -459,6 +462,9 @@ int swap_type_of(dev_t device, sector_t offset) se = list_entry(sis->extent_list.next, struct swap_extent, list); if (se->start_block == offset) { + if (bdev_p) + *bdev_p = sis->bdev; + spin_unlock(&swap_lock); bdput(bdev); return i; |