diff options
| author | Hugh Dickins <hugh@veritas.com> | 2005-09-03 15:54:36 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@evo.osdl.org> | 2005-09-05 00:05:41 -0700 |
| commit | 89d09a2c80ea6baafb559b86d545fada05e14ab5 (patch) | |
| tree | 90ff3c2a62c144b93c89b33d66583046f1a7efae | |
| parent | 6eb396dc4a9781c5e7951143ab56ce5710687ab3 (diff) | |
| download | linux-89d09a2c80ea6baafb559b86d545fada05e14ab5.tar.bz2 | |
[PATCH] swap: freeing update swap_list.next
This makes negligible difference in practice: but swap_list.next should not be
updated to a higher prio in the general helper swap_info_get, but rather in
swap_entry_free; and then only in the case when entry is actually freed.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | mm/swapfile.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c index 6cc6dfb4d27b..62e0da8f7e6e 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -215,8 +215,6 @@ static struct swap_info_struct * swap_info_get(swp_entry_t entry) if (!p->swap_map[offset]) goto bad_free; swap_list_lock(); - if (p->prio > swap_info[swap_list.next].prio) - swap_list.next = type; swap_device_lock(p); return p; @@ -253,6 +251,8 @@ static int swap_entry_free(struct swap_info_struct *p, unsigned long offset) p->lowest_bit = offset; if (offset > p->highest_bit) p->highest_bit = offset; + if (p->prio > swap_info[swap_list.next].prio) + swap_list.next = p - swap_info; nr_swap_pages++; p->inuse_pages--; } |