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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2012-05-09 13:37:43 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2012-05-09 15:17:28 -0400 |
| commit | d1182b33ed9b62470cb6ab892a8a301542120086 (patch) | |
| tree | bb300d0801aeb873ae6d74fcf93deafdc993305a /fs | |
| parent | 3aff4ebb95b20ad8db2c1447e8c52097d89af5a7 (diff) | |
| download | linux-3.10-d1182b33ed9b62470cb6ab892a8a301542120086.tar.gz linux-3.10-d1182b33ed9b62470cb6ab892a8a301542120086.tar.bz2 linux-3.10-d1182b33ed9b62470cb6ab892a8a301542120086.zip | |
NFS: nfs_set_page_writeback no longer needs to reference the page
We now hold a reference to the nfs_page across the calls to
nfs_set_page_writeback and nfs_end_page_writeback, and that
means we already have a reference to the struct page.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Fred Isaman <iisaman@netapp.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nfs/write.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/fs/nfs/write.c b/fs/nfs/write.c index fd36b31ee72..83823294ffd 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -230,7 +230,6 @@ static int nfs_set_page_writeback(struct page *page) struct inode *inode = page->mapping->host; struct nfs_server *nfss = NFS_SERVER(inode); - page_cache_get(page); if (atomic_long_inc_return(&nfss->writeback) > NFS_CONGESTION_ON_THRESH) { set_bdi_congested(&nfss->backing_dev_info, @@ -246,7 +245,6 @@ static void nfs_end_page_writeback(struct page *page) struct nfs_server *nfss = NFS_SERVER(inode); end_page_writeback(page); - page_cache_release(page); if (atomic_long_dec_return(&nfss->writeback) < NFS_CONGESTION_OFF_THRESH) clear_bdi_congested(&nfss->backing_dev_info, BLK_RW_ASYNC); } @@ -607,13 +605,12 @@ static void nfs_write_completion(struct nfs_pgio_header *hdr) nfs_init_cinfo_from_inode(&cinfo, hdr->inode); while (!list_empty(&hdr->pages)) { struct nfs_page *req = nfs_list_entry(hdr->pages.next); - struct page *page = req->wb_page; bytes += req->wb_bytes; nfs_list_remove_request(req); if (test_bit(NFS_IOHDR_ERROR, &hdr->flags) && (hdr->good_bytes < bytes)) { - nfs_set_pageerror(page); + nfs_set_pageerror(req->wb_page); nfs_context_set_write_error(req->wb_context, hdr->error); goto remove_req; } @@ -629,7 +626,7 @@ remove_req: nfs_inode_remove_request(req); next: nfs_unlock_request_dont_release(req); - nfs_end_page_writeback(page); + nfs_end_page_writeback(req->wb_page); nfs_release_request(req); } out: @@ -1040,11 +1037,9 @@ static int nfs_do_multiple_writes(struct list_head *head, */ static void nfs_redirty_request(struct nfs_page *req) { - struct page *page = req->wb_page; - nfs_mark_request_dirty(req); nfs_unlock_request_dont_release(req); - nfs_end_page_writeback(page); + nfs_end_page_writeback(req->wb_page); nfs_release_request(req); } |