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| author | Weston Andros Adamson <dros@primarydata.com> | 2014-05-15 17:56:47 +0200 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2014-05-29 17:11:45 +0200 |
| commit | 20633f042fd0907300069714b98aaf607a8b5bf8 (patch) | |
| tree | 33f23c3c0043376a6636367ec64c2962131c7dd9 /fs/nfs/pagelist.c | |
| parent | nfs: page group syncing in read path (diff) | |
| download | linux-20633f042fd0907300069714b98aaf607a8b5bf8.tar.xz linux-20633f042fd0907300069714b98aaf607a8b5bf8.zip | |
nfs: page group syncing in write path
Operations that modify state for a whole page must be syncronized across
all requests within a page group. In the write path, this is calling
end_page_writeback and removing the head request from an inode.
Both of these operations should not be called until all requests
in a page group have reached the point where they would call them.
This patch should have no effect yet since all page groups currently
have one request, but will come into play when pg_test functions are
modified to split pages into sub-page regions.
Signed-off-by: Weston Andros Adamson <dros@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs/pagelist.c')
| -rw-r--r-- | fs/nfs/pagelist.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c index 18ee4e99347e..ceb4424614aa 100644 --- a/fs/nfs/pagelist.c +++ b/fs/nfs/pagelist.c @@ -397,6 +397,8 @@ static void nfs_free_request(struct nfs_page *req) WARN_ON_ONCE(test_bit(PG_TEARDOWN, &req->wb_flags)); WARN_ON_ONCE(test_bit(PG_UNLOCKPAGE, &req->wb_flags)); WARN_ON_ONCE(test_bit(PG_UPTODATE, &req->wb_flags)); + WARN_ON_ONCE(test_bit(PG_WB_END, &req->wb_flags)); + WARN_ON_ONCE(test_bit(PG_REMOVE, &req->wb_flags)); /* Release struct file and open context */ nfs_clear_request(req); |