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| author | Chuck Lever <cel@netapp.com> | 2006-06-20 12:56:31 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-06-24 13:11:39 -0400 |
| commit | 9c93ab7dff5eb22027ab15010557bb73f9b44c99 (patch) | |
| tree | 654a010c2aa161d0f9f49d7137410aaca1ebd2ba /fs/nfs/direct.c | |
| parent | 51a7bc6caec94bab256b272bffd24d00ea81c698 (diff) | |
| download | linux-9c93ab7dff5eb22027ab15010557bb73f9b44c99.tar.gz linux-9c93ab7dff5eb22027ab15010557bb73f9b44c99.tar.bz2 linux-9c93ab7dff5eb22027ab15010557bb73f9b44c99.zip | |
NFS: refactor nfs_direct_free_user_pages
Clean-up and fix a minor bug: the logic was dirtying page cache pages on
both read and write operations.
Signed-off-by: Chuck Lever <cel@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/direct.c')
| -rw-r--r-- | fs/nfs/direct.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index e4c9e03aff12..4cb3446220ba 100644 --- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c @@ -126,16 +126,21 @@ ssize_t nfs_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov, loff_ return -EINVAL; } -static void nfs_free_user_pages(struct page **pages, int npages, int do_dirty) +static void nfs_direct_dirty_pages(struct page **pages, int npages) { int i; for (i = 0; i < npages; i++) { struct page *page = pages[i]; - if (do_dirty && !PageCompound(page)) + if (!PageCompound(page)) set_page_dirty_lock(page); - page_cache_release(page); } - kfree(pages); +} + +static void nfs_direct_release_pages(struct page **pages, int npages) +{ + int i; + for (i = 0; i < npages; i++) + page_cache_release(pages[i]); } static inline int nfs_get_user_pages(int rw, unsigned long user_addr, size_t size, struct page ***pages) @@ -162,7 +167,7 @@ static inline int nfs_get_user_pages(int rw, unsigned long user_addr, size_t siz * end of a mapping; return EFAULT. */ if (result >= 0) { - nfs_free_user_pages(*pages, result, 0); + nfs_direct_release_pages(*pages, result); result = -EFAULT; } else kfree(*pages); @@ -238,8 +243,6 @@ out: */ static void nfs_direct_complete(struct nfs_direct_req *dreq) { - nfs_free_user_pages(dreq->pages, dreq->npages, 1); - if (dreq->iocb) { long res = (long) dreq->error; if (!res) @@ -311,8 +314,11 @@ static void nfs_direct_read_result(struct rpc_task *task, void *calldata) spin_unlock(&dreq->lock); - if (put_dreq(dreq)) + if (put_dreq(dreq)) { + nfs_direct_dirty_pages(dreq->pages, dreq->npages); + nfs_direct_release_pages(dreq->pages, dreq->npages); nfs_direct_complete(dreq); + } } static const struct rpc_call_ops nfs_read_direct_ops = { @@ -422,6 +428,7 @@ static void nfs_direct_free_writedata(struct nfs_direct_req *dreq) list_del(&data->pages); nfs_writedata_release(data); } + nfs_direct_release_pages(dreq->pages, dreq->npages); } #if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4) |