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Diffstat (limited to 'mm/shmem.c')
-rw-r--r--mm/shmem.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/mm/shmem.c b/mm/shmem.c
index 9d32e1cb9f38..abd7403aba41 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -300,18 +300,19 @@ void shmem_uncharge(struct inode *inode, long pages)
static int shmem_radix_tree_replace(struct address_space *mapping,
pgoff_t index, void *expected, void *replacement)
{
+ struct radix_tree_node *node;
void **pslot;
void *item;
VM_BUG_ON(!expected);
VM_BUG_ON(!replacement);
- pslot = radix_tree_lookup_slot(&mapping->page_tree, index);
- if (!pslot)
+ item = __radix_tree_lookup(&mapping->page_tree, index, &node, &pslot);
+ if (!item)
return -ENOENT;
- item = radix_tree_deref_slot_protected(pslot, &mapping->tree_lock);
if (item != expected)
return -ENOENT;
- radix_tree_replace_slot(pslot, replacement);
+ __radix_tree_replace(&mapping->page_tree, node, pslot,
+ replacement, NULL, NULL);
return 0;
}
@@ -370,6 +371,7 @@ static bool shmem_confirm_swap(struct address_space *mapping,
int shmem_huge __read_mostly;
+#if defined(CONFIG_SYSFS) || defined(CONFIG_TMPFS)
static int shmem_parse_huge(const char *str)
{
if (!strcmp(str, "never"))
@@ -407,6 +409,7 @@ static const char *shmem_format_huge(int huge)
return "bad_val";
}
}
+#endif
static unsigned long shmem_unused_huge_shrink(struct shmem_sb_info *sbinfo,
struct shrink_control *sc, unsigned long nr_to_split)
@@ -1539,7 +1542,7 @@ static int shmem_getpage_gfp(struct inode *inode, pgoff_t index,
struct mm_struct *fault_mm, int *fault_type)
{
struct address_space *mapping = inode->i_mapping;
- struct shmem_inode_info *info;
+ struct shmem_inode_info *info = SHMEM_I(inode);
struct shmem_sb_info *sbinfo;
struct mm_struct *charge_mm;
struct mem_cgroup *memcg;
@@ -1589,7 +1592,6 @@ repeat:
* Fast cache lookup did not find it:
* bring it back from swap or allocate.
*/
- info = SHMEM_I(inode);
sbinfo = SHMEM_SB(inode->i_sb);
charge_mm = fault_mm ? : current->mm;
@@ -1837,7 +1839,6 @@ unlock:
put_page(page);
}
if (error == -ENOSPC && !once++) {
- info = SHMEM_I(inode);
spin_lock_irq(&info->lock);
shmem_recalc_inode(inode);
spin_unlock_irq(&info->lock);