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btrfs: cleanup iterating over prop_handlers array

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This patch eliminates the last item of prop_handlers array which is used
to check end of array and instead uses ARRAY_SIZE macro.
Though this is a very tiny optimization, using ARRAY_SIZE macro is a
good practice to iterate array.

Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: Byongho Lee <bhlee.kernel@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Byongho Lee 2015-10-08 20:49:34 +09:00 committed by David Sterba
parent 8cd1e73111
commit 619ed39242
1 changed files with 6 additions and 7 deletions
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13
fs/btrfs/props.c
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@ -49,18 +49,16 @@ static struct prop_handler prop_handlers[] = {
.extract = prop_compression_extract,
.inheritable = 1
},
{
.xattr_name = NULL
}
};
void __init btrfs_props_init(void)
{
struct prop_handler *p;
int i;
hash_init(prop_handlers_ht);
for (p = &prop_handlers[0]; p->xattr_name; p++) {
for (i = 0; i < ARRAY_SIZE(prop_handlers); i++) {
struct prop_handler *p = &prop_handlers[i];
u64 h = btrfs_name_hash(p->xattr_name, strlen(p->xattr_name));
hash_add(prop_handlers_ht, &p->node, h);
@ -301,15 +299,16 @@ static int inherit_props(struct btrfs_trans_handle *trans,
struct inode *inode,
struct inode *parent)
{
const struct prop_handler *h;
struct btrfs_root *root = BTRFS_I(inode)->root;
int ret;
int i;
if (!test_bit(BTRFS_INODE_HAS_PROPS,
&BTRFS_I(parent)->runtime_flags))
return 0;
for (h = &prop_handlers[0]; h->xattr_name; h++) {
for (i = 0; i < ARRAY_SIZE(prop_handlers); i++) {
const struct prop_handler *h = &prop_handlers[i];
const char *value;
u64 num_bytes;