diff options
| author | Michel Lespinasse <walken@google.com> | 2013-02-23 04:32:47 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-24 05:50:11 +0400 |
| commit | 41badc15cbad0350de34408c1b0c690f9df76d4b (patch) | |
| tree | 2545134398b99b37259bf6412a0bb56442f120fa /fs/aio.c | |
| parent | 1869305009857cdeaabe6283bcdc2359c5784543 (diff) | |
| download | linux-41badc15cbad0350de34408c1b0c690f9df76d4b.tar.xz | |
mm: make do_mmap_pgoff return populate as a size in bytes, not as a bool
do_mmap_pgoff() rounds up the desired size to the next PAGE_SIZE
multiple, however there was no equivalent code in mm_populate(), which
caused issues.
This could be fixed by introduced the same rounding in mm_populate(),
however I think it's preferable to make do_mmap_pgoff() return populate
as a size rather than as a boolean, so we don't have to duplicate the
size rounding logic in mm_populate().
Signed-off-by: Michel Lespinasse <walken@google.com>
Acked-by: Rik van Riel <riel@redhat.com>
Tested-by: Andy Lutomirski <luto@amacapital.net>
Cc: Greg Ungerer <gregungerer@westnet.com.au>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/aio.c')
| -rw-r--r-- | fs/aio.c | 5 |
1 files changed, 2 insertions, 3 deletions
@@ -101,9 +101,8 @@ static int aio_setup_ring(struct kioctx *ctx) struct aio_ring *ring; struct aio_ring_info *info = &ctx->ring_info; unsigned nr_events = ctx->max_reqs; - unsigned long size; + unsigned long size, populate; int nr_pages; - bool populate; /* Compensate for the ring buffer's head/tail overlap entry */ nr_events += 2; /* 1 is required, 2 for good luck */ @@ -150,7 +149,7 @@ static int aio_setup_ring(struct kioctx *ctx) return -EAGAIN; } if (populate) - mm_populate(info->mmap_base, info->mmap_size); + mm_populate(info->mmap_base, populate); ctx->user_id = info->mmap_base; |