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staging: lustre: header: remove assert from interval_set() 

In the case of interval_tree.h only interval_set()
uses LASSERT which is removed in this patch and
interval_set() instead reports a real error. The
header libcfs.h for interval_tree.h is not needed
anymore so we can just use the standard linux
kernel headers instead.h

Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6401
Reviewed-on: https://review.whamcloud.com/22522
Reviewed-on: https://review.whamcloud.com/24323
Reviewed-by: Frank Zago <fzago@cray.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
James Simmons 2017-01-28 19:05:04 -05:00 committed by Greg Kroah-Hartman
parent 098b325b8f
commit 8e7a7362c3
4 changed files with 20 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/staging/lustre/lustre/include/interval_tree.h
View File

@ -36,7 +36,9 @@
#ifndef _INTERVAL_H__
#define _INTERVAL_H__
#include "../../include/linux/libcfs/libcfs.h" /* LASSERT. */
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/types.h>
struct interval_node {
struct interval_node *in_left;
@ -73,13 +75,15 @@ static inline __u64 interval_high(struct interval_node *node)
return node->in_extent.end;
}
static inline void interval_set(struct interval_node *node,
__u64 start, __u64 end)
static inline int interval_set(struct interval_node *node,
__u64 start, __u64 end)
{
LASSERT(start <= end);
if (start > end)
return -ERANGE;
node->in_extent.start = start;
node->in_extent.end = end;
node->in_max_high = end;
return 0;
}
/*

5
drivers/staging/lustre/lustre/ldlm/ldlm_extent.c
View File

@ -162,7 +162,7 @@ void ldlm_extent_add_lock(struct ldlm_resource *res,
struct interval_node *found, **root;
struct ldlm_interval *node;
struct ldlm_extent *extent;
int idx;
int idx, rc;
LASSERT(lock->l_granted_mode == lock->l_req_mode);
@ -176,7 +176,8 @@ void ldlm_extent_add_lock(struct ldlm_resource *res,
/* node extent initialize */
extent = &lock->l_policy_data.l_extent;
interval_set(&node->li_node, extent->start, extent->end);
rc = interval_set(&node->li_node, extent->start, extent->end);
LASSERT(!rc);
root = &res->lr_itree[idx].lit_root;
found = interval_insert(&node->li_node, root);

10
drivers/staging/lustre/lustre/llite/range_lock.c
View File

@ -61,17 +61,23 @@ void range_lock_tree_init(struct range_lock_tree *tree)
* Pre: Caller should have allocated the range lock node.
* Post: The range lock node is meant to cover [start, end] region
*/
void range_lock_init(struct range_lock *lock, __u64 start, __u64 end)
int range_lock_init(struct range_lock *lock, __u64 start, __u64 end)
{
int rc;
memset(&lock->rl_node, 0, sizeof(lock->rl_node));
if (end != LUSTRE_EOF)
end >>= PAGE_SHIFT;
interval_set(&lock->rl_node, start >> PAGE_SHIFT, end);
rc = interval_set(&lock->rl_node, start >> PAGE_SHIFT, end);
if (rc)
return rc;
INIT_LIST_HEAD(&lock->rl_next_lock);
lock->rl_task = NULL;
lock->rl_lock_count = 0;
lock->rl_blocking_ranges = 0;
lock->rl_sequence = 0;
return rc;
}
static inline struct range_lock *next_lock(struct range_lock *lock)

2
drivers/staging/lustre/lustre/llite/range_lock.h
View File

@ -76,7 +76,7 @@ struct range_lock_tree {
};
void range_lock_tree_init(struct range_lock_tree *tree);
void range_lock_init(struct range_lock *lock, __u64 start, __u64 end);
int range_lock_init(struct range_lock *lock, __u64 start, __u64 end);
int range_lock(struct range_lock_tree *tree, struct range_lock *lock);
void range_unlock(struct range_lock_tree *tree, struct range_lock *lock);
#endif