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ceph: use __page_cache_alloc and add_to_page_cache_lru

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Following Nick Piggin patches in btrfs, pagecache pages should be
allocated with __page_cache_alloc, so they obey pagecache memory
policies.

Also, using add_to_page_cache_lru instead of using a private
pagevec where applicable.

Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Yehuda Sadeh
2010-03-17 13:54:02 -07:00
committed by Sage Weil
parent f553069e5d
commit 31459fe4b2
5 changed files with 6 additions and 11 deletions
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9
fs/ceph/addr.c
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@@ -274,7 +274,6 @@ static int ceph_readpages(struct file *file, struct address_space *mapping,
struct ceph_osd_client *osdc = &ceph_inode_to_client(inode)->osdc;
int rc = 0;
struct page **pages;
struct pagevec pvec;
loff_t offset;
u64 len;
@@ -297,8 +296,6 @@ static int ceph_readpages(struct file *file, struct address_space *mapping,
if (rc < 0)
goto out;
/* set uptodate and add to lru in pagevec-sized chunks */
pagevec_init(&pvec, 0);
for (; !list_empty(page_list) && len > 0;
rc -= PAGE_CACHE_SIZE, len -= PAGE_CACHE_SIZE) {
struct page *page =
@@ -312,7 +309,7 @@ static int ceph_readpages(struct file *file, struct address_space *mapping,
zero_user_segment(page, s, PAGE_CACHE_SIZE);
}
if (add_to_page_cache(page, mapping, page->index, GFP_NOFS)) {
if (add_to_page_cache_lru(page, mapping, page->index, GFP_NOFS)) {
page_cache_release(page);
dout("readpages %p add_to_page_cache failed %p\n",
inode, page);
@@ -323,10 +320,8 @@ static int ceph_readpages(struct file *file, struct address_space *mapping,
flush_dcache_page(page);
SetPageUptodate(page);
unlock_page(page);
if (pagevec_add(&pvec, page) == 0)
pagevec_lru_add_file(&pvec); /* add to lru */
page_cache_release(page);
}
pagevec_lru_add_file(&pvec);
rc = 0;
out: