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[PATCH] ext4 balloc: say rb_entry not list_entry

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The reservations tree is an rb_tree not a list, so it's less confusing to use
rb_entry() than list_entry() - though they're both just container_of().

Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Hugh Dickins 2006-12-06 20:39:21 -08:00 committed by Linus Torvalds
parent b2f2c76d17
commit b78a657f0a
1 changed files with 3 additions and 3 deletions
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6
fs/ext4/balloc.c
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@ -165,7 +165,7 @@ static void __rsv_window_dump(struct rb_root *root, int verbose,
printk("Block Allocation Reservation Windows Map (%s):\n", fn); printk("Block Allocation Reservation Windows Map (%s):\n", fn);
while (n) { while (n) {
rsv = list_entry(n, struct ext4_reserve_window_node, rsv_node); rsv = rb_entry(n, struct ext4_reserve_window_node, rsv_node);
if (verbose) if (verbose)
printk("reservation window 0x%p " printk("reservation window 0x%p "
"start: %llu, end: %llu\n", "start: %llu, end: %llu\n",
@ -966,7 +966,7 @@ static int find_next_reservable_window(
prev = rsv; prev = rsv;
next = rb_next(&rsv->rsv_node); next = rb_next(&rsv->rsv_node);
rsv = list_entry(next,struct ext4_reserve_window_node,rsv_node); rsv = rb_entry(next,struct ext4_reserve_window_node,rsv_node);
/* /*
* Reached the last reservation, we can just append to the * Reached the last reservation, we can just append to the
@ -1210,7 +1210,7 @@ static void try_to_extend_reservation(struct ext4_reserve_window_node *my_rsv,
if (!next) if (!next)
my_rsv->rsv_end += size; my_rsv->rsv_end += size;
else { else {
next_rsv = list_entry(next, struct ext4_reserve_window_node, rsv_node); next_rsv = rb_entry(next, struct ext4_reserve_window_node, rsv_node);
if ((next_rsv->rsv_start - my_rsv->rsv_end - 1) >= size) if ((next_rsv->rsv_start - my_rsv->rsv_end - 1) >= size)
my_rsv->rsv_end += size; my_rsv->rsv_end += size;