diff options
| author | Cesar Eduardo Barros <cesarb@cesarb.net> | 2011-03-23 00:33:27 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-23 01:44:07 +0100 |
| commit | 87ade72a799a9a895b4a60918c32b43d3dfc3324 (patch) | |
| tree | 3110f7526fc3581962232b39567fee2fb95c44aa /mm/swapfile.c | |
| parent | sys_swapon: separate bdev claim and inode lock (diff) | |
| download | linux-87ade72a799a9a895b4a60918c32b43d3dfc3324.tar.xz linux-87ade72a799a9a895b4a60918c32b43d3dfc3324.zip | |
sys_swapon: simplify error flow in claim_swapfile()
Since there is no cleanup to do, there is no reason to jump to a label.
Return directly instead.
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/swapfile.c')
| -rw-r--r-- | mm/swapfile.c | 20 |
1 files changed, 6 insertions, 14 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c index fc687b234eb5..61a604c12a96 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -1900,30 +1900,22 @@ static int claim_swapfile(struct swap_info_struct *p, struct inode *inode) sys_swapon); if (error < 0) { p->bdev = NULL; - error = -EINVAL; - goto bad_swap; + return -EINVAL; } p->old_block_size = block_size(p->bdev); error = set_blocksize(p->bdev, PAGE_SIZE); if (error < 0) - goto bad_swap; + return error; p->flags |= SWP_BLKDEV; } else if (S_ISREG(inode->i_mode)) { p->bdev = inode->i_sb->s_bdev; mutex_lock(&inode->i_mutex); - if (IS_SWAPFILE(inode)) { - error = -EBUSY; - goto bad_swap; - } - } else { - error = -EINVAL; - goto bad_swap; - } + if (IS_SWAPFILE(inode)) + return -EBUSY; + } else + return -EINVAL; return 0; - -bad_swap: - return error; } SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags) |