The patch titled
sys_swapon: move setting of error nearer use
has been removed from the -mm tree. Its filename was
sys_swapon-move-setting-of-error-nearer-use.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: move setting of error nearer use
From: Cesar Eduardo Barros <cesarb@xxxxxxxxxx>
Move the setting of the error variable nearer the goto in a few places.
Avoids calling PTR_ERR() if not IS_ERR() in two places, and makes the
error condition more explicit in two other places.
Signed-off-by: Cesar Eduardo Barros <cesarb@xxxxxxxxxx>
Tested-by: Eric B Munson <emunson@xxxxxxxxx>
Acked-by: Eric B Munson <emunson@xxxxxxxxx>
Reviewed-by: Jesper Juhl <jj@xxxxxxxxxxxxx>
Reviewed-by: Pekka Enberg <penberg@xxxxxxxxxx>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/swapfile.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff -puN mm/swapfile.c~sys_swapon-move-setting-of-error-nearer-use mm/swapfile.c
--- a/mm/swapfile.c~sys_swapon-move-setting-of-error-nearer-use
+++ a/mm/swapfile.c
@@ -1916,14 +1916,14 @@ SYSCALL_DEFINE2(swapon, const char __use
return PTR_ERR(p);
name = getname(specialfile);
- error = PTR_ERR(name);
if (IS_ERR(name)) {
+ error = PTR_ERR(name);
name = NULL;
goto bad_swap_2;
}
swap_file = filp_open(name, O_RDWR|O_LARGEFILE, 0);
- error = PTR_ERR(swap_file);
if (IS_ERR(swap_file)) {
+ error = PTR_ERR(swap_file);
swap_file = NULL;
goto bad_swap_2;
}
@@ -1932,17 +1932,17 @@ SYSCALL_DEFINE2(swapon, const char __use
mapping = swap_file->f_mapping;
inode = mapping->host;
- error = -EBUSY;
for (i = 0; i < nr_swapfiles; i++) {
struct swap_info_struct *q = swap_info[i];
if (q == p || !q->swap_file)
continue;
- if (mapping == q->swap_file->f_mapping)
+ if (mapping == q->swap_file->f_mapping) {
+ error = -EBUSY;
goto bad_swap;
+ }
}
- error = -EINVAL;
if (S_ISBLK(inode->i_mode)) {
bdev = bdgrab(I_BDEV(inode));
error = blkdev_get(bdev, FMODE_READ | FMODE_WRITE | FMODE_EXCL,
@@ -1966,6 +1966,7 @@ SYSCALL_DEFINE2(swapon, const char __use
goto bad_swap;
}
} else {
+ error = -EINVAL;
goto bad_swap;
}
_
Patches currently in -mm which might be from cesarb@xxxxxxxxxx are
origin.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
