Messages in this thread Patch in this message | | | Date | Thu, 06 May 2010 21:36:21 +0800 | From | "潘卫平(Peter Pan)" <> | Subject | [PATCH] ext2/ext3:useless code for return value |
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When rsv is the right hand side of goal, we should return NULL, because now rsv's prev is NULL, or we return rsv.
Signed-off-by: Peter Pan(潘卫平) <wppan@redflag-linux.com>
--- fs/ext2/balloc.c | 6 +----- fs/ext3/balloc.c | 6 +----- 2 files changed, 2 insertions(+), 10 deletions(-)
diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c index 3cf038c..023990f 100644 --- a/fs/ext2/balloc.c +++ b/fs/ext2/balloc.c @@ -323,11 +323,7 @@ search_reserve_window(struct rb_root *root, ext2_fsblk_t goal) * side of the interval containing the goal. If it's the RHS, * we need to back up one. */ - if (rsv->rsv_start > goal) { - n = rb_prev(&rsv->rsv_node); - rsv = rb_entry(n, struct ext2_reserve_window_node, rsv_node); - } - return rsv; + return (rsv->rsv_start < goal) ? rsv : NULL; }
/* diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c index a177122..bfa62e9 100644 --- a/fs/ext3/balloc.c +++ b/fs/ext3/balloc.c @@ -310,11 +310,7 @@ search_reserve_window(struct rb_root *root, ext3_fsblk_t goal) * side of the interval containing the goal. If it's the RHS, * we need to back up one. */ - if (rsv->rsv_start > goal) { - n = rb_prev(&rsv->rsv_node); - rsv = rb_entry(n, struct ext3_reserve_window_node, rsv_node); - } - return rsv; + return (rsv->rsv_start < goal) ? rsv : NULL; }
/** -- 1.6.6
-- Peter Pan(潘卫平) Red Flag Software Co.,Ltd -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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