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| author | Cesar Eduardo Barros <cesarb@cesarb.net> | 2011-03-22 16:33:35 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-22 17:44:08 -0700 |
| commit | c69dbfb84e88503468b6c481aecdb48d76ad5bc6 (patch) | |
| tree | ade74b75b80a0481ae6309c9cb0bc7298db13ad7 /mm | |
| parent | 9c8100ef26ba9012b8677a383179a0cf169fc7f3 (diff) | |
| download | linux-c69dbfb84e88503468b6c481aecdb48d76ad5bc6.tar.bz2 | |
sys_swapon: move printk outside lock
The block in sys_swapon which does the final adjustments to the
swap_info_struct and to swap_list is the same as the block which
re-inserts it again at sys_swapoff on failure of try_to_unuse(). To be
able to make both share the same code, move the printk() call in the
middle of it to just after it.
Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net>
Tested-by: Eric B Munson <emunson@mgebm.net>
Acked-by: Eric B Munson <emunson@mgebm.net>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/swapfile.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c index 9e3613b91612..df3dc7a3c2e2 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -2144,13 +2144,6 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags) nr_swap_pages += p->pages; total_swap_pages += p->pages; - printk(KERN_INFO "Adding %uk swap on %s. " - "Priority:%d extents:%d across:%lluk %s%s\n", - p->pages<<(PAGE_SHIFT-10), name, p->prio, - nr_extents, (unsigned long long)span<<(PAGE_SHIFT-10), - (p->flags & SWP_SOLIDSTATE) ? "SS" : "", - (p->flags & SWP_DISCARDABLE) ? "D" : ""); - /* insert swap space into swap_list: */ prev = -1; for (i = swap_list.head; i >= 0; i = swap_info[i]->next) { @@ -2164,6 +2157,14 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags) else swap_info[prev]->next = p->type; spin_unlock(&swap_lock); + + printk(KERN_INFO "Adding %uk swap on %s. " + "Priority:%d extents:%d across:%lluk %s%s\n", + p->pages<<(PAGE_SHIFT-10), name, p->prio, + nr_extents, (unsigned long long)span<<(PAGE_SHIFT-10), + (p->flags & SWP_SOLIDSTATE) ? "SS" : "", + (p->flags & SWP_DISCARDABLE) ? "D" : ""); + mutex_unlock(&swapon_mutex); atomic_inc(&proc_poll_event); wake_up_interruptible(&proc_poll_wait); |