The patch titled
sys_swapon: simplify error flow in read_swap_header()
has been removed from the -mm tree. Its filename was
sys_swapon-simplify-error-flow-in-read_swap_header.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: sys_swapon: simplify error flow in read_swap_header()
From: Cesar Eduardo Barros <cesarb@xxxxxxxxxx>
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@xxxxxxxxxx>
Tested-by: Eric B Munson <emunson@xxxxxxxxx>
Acked-by: Eric B Munson <emunson@xxxxxxxxx>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/swapfile.c | 15 ++++++---------
1 file changed, 6 insertions(+), 9 deletions(-)
diff -puN mm/swapfile.c~sys_swapon-simplify-error-flow-in-read_swap_header mm/swapfile.c
--- a/mm/swapfile.c~sys_swapon-simplify-error-flow-in-read_swap_header
+++ a/mm/swapfile.c
@@ -1928,7 +1928,7 @@ static unsigned long read_swap_header(st
if (memcmp("SWAPSPACE2", swap_header->magic.magic, 10)) {
printk(KERN_ERR "Unable to find swap-space signature\n");
- goto bad_swap;
+ return 0;
}
/* swap partition endianess hack... */
@@ -1944,7 +1944,7 @@ static unsigned long read_swap_header(st
printk(KERN_WARNING
"Unable to handle swap header version %d\n",
swap_header->info.version);
- goto bad_swap;
+ return 0;
}
p->lowest_bit = 1;
@@ -1976,22 +1976,19 @@ static unsigned long read_swap_header(st
p->highest_bit = maxpages - 1;
if (!maxpages)
- goto bad_swap;
+ return 0;
swapfilepages = i_size_read(inode) >> PAGE_SHIFT;
if (swapfilepages && maxpages > swapfilepages) {
printk(KERN_WARNING
"Swap area shorter than signature indicates\n");
- goto bad_swap;
+ return 0;
}
if (swap_header->info.nr_badpages && S_ISREG(inode->i_mode))
- goto bad_swap;
+ return 0;
if (swap_header->info.nr_badpages > MAX_SWAP_BADPAGES)
- goto bad_swap;
+ return 0;
return maxpages;
-
-bad_swap:
- return 0;
}
SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
_
Patches currently in -mm which might be from cesarb@xxxxxxxxxx are
origin.patch
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