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Message-Id: <1383788572-25938-12-git-send-email-cody@linux.vnet.ibm.com> Date: Wed, 6 Nov 2013 17:42:40 -0800 From: Cody P Schafer <cody@...ux.vnet.ibm.com> To: Andrew Morton <akpm@...ux-foundation.org>, EXT4 <linux-ext4@...r.kernel.org>, Jan Kara <jack@...e.cz>, rostedt@...dmis.org, Cody P Schafer <cody@...ux.vnet.ibm.com> Cc: LKML <linux-kernel@...r.kernel.org>, linux-sh@...r.kernel.org, Paul Mundt <lethal@...ux-sh.org> Subject: [PATCH v2 11/11] sh/dwarf: use rbtree postorder iteration helper instead of solution using repeated rb_erase() Use rbtree_postorder_for_each_entry_safe() to destroy the rbtree instead of using repeated rb_erase() calls Signed-off-by: Cody P Schafer <cody@...ux.vnet.ibm.com> --- arch/sh/kernel/dwarf.c | 18 ++++-------------- 1 file changed, 4 insertions(+), 14 deletions(-) diff --git a/arch/sh/kernel/dwarf.c b/arch/sh/kernel/dwarf.c index 49c09c7..67a049e 100644 --- a/arch/sh/kernel/dwarf.c +++ b/arch/sh/kernel/dwarf.c @@ -995,29 +995,19 @@ static struct unwinder dwarf_unwinder = { static void dwarf_unwinder_cleanup(void) { - struct rb_node **fde_rb_node = &fde_root.rb_node; - struct rb_node **cie_rb_node = &cie_root.rb_node; + struct dwarf_fde *fde, *next_fde; + struct dwarf_cie *cie, *next_cie; /* * Deallocate all the memory allocated for the DWARF unwinder. * Traverse all the FDE/CIE lists and remove and free all the * memory associated with those data structures. */ - while (*fde_rb_node) { - struct dwarf_fde *fde; - - fde = rb_entry(*fde_rb_node, struct dwarf_fde, node); - rb_erase(*fde_rb_node, &fde_root); + rbtree_postorder_for_each_entry_safe(fde, next_fde, &fde_root, node) kfree(fde); - } - while (*cie_rb_node) { - struct dwarf_cie *cie; - - cie = rb_entry(*cie_rb_node, struct dwarf_cie, node); - rb_erase(*cie_rb_node, &cie_root); + rbtree_postorder_for_each_entry_safe(cie, next_cie, &cie_root, node) kfree(cie); - } kmem_cache_destroy(dwarf_reg_cachep); kmem_cache_destroy(dwarf_frame_cachep); -- 1.8.4.2 -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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