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staging/lustre/llite: get rid of unused ll_super_blocks list

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ll_super_blocks became unused quite a while ago with switch
to the new CLIO code.
So this patch removes the list, ll_sb_lock spinlock that guards it
and superblock info ll_list linkage.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Oleg Drokin 2015-08-08 20:09:06 -04:00 • committed by Greg Kroah-Hartman
parent d38c59e9ab
commit ad88aae057
2 changed files with 1 additions and 14 deletions
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1
drivers/staging/lustre/lustre/llite/llite_internal.h
View file

@ -456,7 +456,6 @@ struct eacl_table {
}; };
struct ll_sb_info { struct ll_sb_info {
struct list_head ll_list;
/* this protects pglist and ra_info. It isn't safe to /* this protects pglist and ra_info. It isn't safe to
* grab from interrupt contexts */ * grab from interrupt contexts */
spinlock_t ll_lock; spinlock_t ll_lock;

14
drivers/staging/lustre/lustre/llite/llite_lib.c
View file

@ -60,9 +60,6 @@ struct kmem_cache *ll_file_data_slab;
struct dentry *llite_root; struct dentry *llite_root;
struct kset *llite_kset; struct kset *llite_kset;
static LIST_HEAD(ll_super_blocks);
static DEFINE_SPINLOCK(ll_sb_lock);
#ifndef log2 #ifndef log2
#define log2(n) ffz(~(n)) #define log2(n) ffz(~(n))
#endif #endif
@ -112,10 +109,6 @@ static struct ll_sb_info *ll_init_sbi(struct super_block *sb)
class_uuid_unparse(uuid, &sbi->ll_sb_uuid); class_uuid_unparse(uuid, &sbi->ll_sb_uuid);
CDEBUG(D_CONFIG, "generated uuid: %s\n", sbi->ll_sb_uuid.uuid); CDEBUG(D_CONFIG, "generated uuid: %s\n", sbi->ll_sb_uuid.uuid);
spin_lock(&ll_sb_lock);
list_add_tail(&sbi->ll_list, &ll_super_blocks);
spin_unlock(&ll_sb_lock);
sbi->ll_flags |= LL_SBI_VERBOSE; sbi->ll_flags |= LL_SBI_VERBOSE;
sbi->ll_flags |= LL_SBI_CHECKSUM; sbi->ll_flags |= LL_SBI_CHECKSUM;
@ -144,12 +137,7 @@ static void ll_free_sbi(struct super_block *sb)
{ {
struct ll_sb_info *sbi = ll_s2sbi(sb); struct ll_sb_info *sbi = ll_s2sbi(sb);
if (sbi != NULL) { kfree(sbi);
spin_lock(&ll_sb_lock);
list_del(&sbi->ll_list);
spin_unlock(&ll_sb_lock);
kfree(sbi);
}
} }
static int client_common_fill_super(struct super_block *sb, char *md, char *dt, static int client_common_fill_super(struct super_block *sb, char *md, char *dt,