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Diffstat (limited to 'fs/drop_caches.c')
-rw-r--r--fs/drop_caches.c24
1 files changed, 2 insertions, 22 deletions
diff --git a/fs/drop_caches.c b/fs/drop_caches.c
index 31f4b0e6d72c..83c4f600786a 100644
--- a/fs/drop_caches.c
+++ b/fs/drop_caches.c
@@ -12,7 +12,7 @@
/* A global variable is a bit ugly, but it keeps the code simple */
int sysctl_drop_caches;
-static void drop_pagecache_sb(struct super_block *sb)
+static void drop_pagecache_sb(struct super_block *sb, void *unused)
{
struct inode *inode, *toput_inode = NULL;
@@ -33,26 +33,6 @@ static void drop_pagecache_sb(struct super_block *sb)
iput(toput_inode);
}
-static void drop_pagecache(void)
-{
- struct super_block *sb;
-
- spin_lock(&sb_lock);
-restart:
- list_for_each_entry(sb, &super_blocks, s_list) {
- sb->s_count++;
- spin_unlock(&sb_lock);
- down_read(&sb->s_umount);
- if (sb->s_root)
- drop_pagecache_sb(sb);
- up_read(&sb->s_umount);
- spin_lock(&sb_lock);
- if (__put_super_and_need_restart(sb))
- goto restart;
- }
- spin_unlock(&sb_lock);
-}
-
static void drop_slab(void)
{
int nr_objects;
@@ -68,7 +48,7 @@ int drop_caches_sysctl_handler(ctl_table *table, int write,
proc_dointvec_minmax(table, write, buffer, length, ppos);
if (write) {
if (sysctl_drop_caches & 1)
- drop_pagecache();
+ iterate_supers(drop_pagecache_sb, NULL);
if (sysctl_drop_caches & 2)
drop_slab();
}