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staging: lustre: ldlm: use list_first_entry in ldlm_lock 

This make the code (slightly) more readable.

Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
NeilBrown 2017-10-30 15:59:27 +11:00 committed by Greg Kroah-Hartman
parent 3d9c54b5f9
commit ef7e70ae99
1 changed files with 4 additions and 4 deletions
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8
drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
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@ -1687,7 +1687,7 @@ ldlm_work_bl_ast_lock(struct ptlrpc_request_set *rqset, void *opaq)
if (list_empty(arg->list))
return -ENOENT;
lock = list_entry(arg->list->next, struct ldlm_lock, l_bl_ast);
lock = list_first_entry(arg->list, struct ldlm_lock, l_bl_ast);
/* nobody should touch l_bl_ast */
lock_res_and_lock(lock);
@ -1723,7 +1723,7 @@ ldlm_work_cp_ast_lock(struct ptlrpc_request_set *rqset, void *opaq)
if (list_empty(arg->list))
return -ENOENT;
lock = list_entry(arg->list->next, struct ldlm_lock, l_cp_ast);
lock = list_first_entry(arg->list, struct ldlm_lock, l_cp_ast);
/* It's possible to receive a completion AST before we've set
* the l_completion_ast pointer: either because the AST arrived
@ -1769,7 +1769,7 @@ ldlm_work_revoke_ast_lock(struct ptlrpc_request_set *rqset, void *opaq)
if (list_empty(arg->list))
return -ENOENT;
lock = list_entry(arg->list->next, struct ldlm_lock, l_rk_ast);
lock = list_first_entry(arg->list, struct ldlm_lock, l_rk_ast);
list_del_init(&lock->l_rk_ast);
/* the desc just pretend to exclusive */
@ -1796,7 +1796,7 @@ static int ldlm_work_gl_ast_lock(struct ptlrpc_request_set *rqset, void *opaq)
if (list_empty(arg->list))
return -ENOENT;
gl_work = list_entry(arg->list->next, struct ldlm_glimpse_work,
gl_work = list_first_entry(arg->list, struct ldlm_glimpse_work,
gl_list);
list_del_init(&gl_work->gl_list);