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| author | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2008-05-19 15:09:05 +1000 |
|---|---|---|
| committer | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2008-05-19 15:09:05 +1000 |
| commit | c203e45f069af47ca7623e4dcd8c00bfba2722e4 (patch) | |
| tree | 4563115b6565dcfd97015c1c9366fb3d07cabf19 /fs/drop_caches.c | |
| parent | a94477da38e0b261a7ecea71f4c95a3bcd5be69c (diff) | |
| parent | b8291ad07a7f3b5b990900f0001198ac23ba893e (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus
Diffstat (limited to 'fs/drop_caches.c')
| -rw-r--r-- | fs/drop_caches.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/fs/drop_caches.c b/fs/drop_caches.c index 59375efcf39..3e5637fc377 100644 --- a/fs/drop_caches.c +++ b/fs/drop_caches.c @@ -14,18 +14,26 @@ int sysctl_drop_caches; static void drop_pagecache_sb(struct super_block *sb) { - struct inode *inode; + struct inode *inode, *toput_inode = NULL; spin_lock(&inode_lock); list_for_each_entry(inode, &sb->s_inodes, i_sb_list) { if (inode->i_state & (I_FREEING|I_WILL_FREE)) continue; + if (inode->i_mapping->nrpages == 0) + continue; + __iget(inode); + spin_unlock(&inode_lock); __invalidate_mapping_pages(inode->i_mapping, 0, -1, true); + iput(toput_inode); + toput_inode = inode; + spin_lock(&inode_lock); } spin_unlock(&inode_lock); + iput(toput_inode); } -void drop_pagecache(void) +static void drop_pagecache(void) { struct super_block *sb; @@ -45,7 +53,7 @@ restart: spin_unlock(&sb_lock); } -void drop_slab(void) +static void drop_slab(void) { int nr_objects; |