From b9b1f8d5930a813879278d0cbfc8c658d6a038dc Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 10 May 2007 03:15:21 -0700 Subject: AFS: write support fixes AFS write support fixes: (1) Support large files using the 64-bit file access operations if available on the server. (2) Use kmap_atomic() rather than kmap() in afs_prepare_page(). (3) Don't do stuff in afs_writepage() that's done by the caller. [akpm@linux-foundation.org: fix right shift count >= width of type] Signed-off-by: David Howells Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/afs/write.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) (limited to 'fs/afs/write.c') diff --git a/fs/afs/write.c b/fs/afs/write.c index 83ff2926281..aa03d43984b 100644 --- a/fs/afs/write.c +++ b/fs/afs/write.c @@ -122,7 +122,7 @@ static int afs_prepare_page(struct afs_vnode *vnode, struct page *page, if (offset == 0 && to == PAGE_SIZE) return 0; - p = kmap(page); + p = kmap_atomic(page, KM_USER0); i_size = i_size_read(&vnode->vfs_inode); pos = (loff_t) page->index << PAGE_SHIFT; @@ -133,7 +133,7 @@ static int afs_prepare_page(struct afs_vnode *vnode, struct page *page, memset(p, 0, offset); if (to < PAGE_SIZE) memset(p + to, 0, PAGE_SIZE - to); - kunmap(page); + kunmap_atomic(p, KM_USER0); return 0; } @@ -152,7 +152,7 @@ static int afs_prepare_page(struct afs_vnode *vnode, struct page *page, memset(p + eof, 0, PAGE_SIZE - eof); } - kunmap(p); + kunmap_atomic(p, KM_USER0); ret = 0; if (offset > 0 || eof > to) { @@ -489,14 +489,6 @@ int afs_writepage(struct page *page, struct writeback_control *wbc) _enter("{%lx},", page->index); - if (wbc->sync_mode != WB_SYNC_NONE) - wait_on_page_writeback(page); - - if (PageWriteback(page) || !PageDirty(page)) { - unlock_page(page); - return 0; - } - wb = (struct afs_writeback *) page_private(page); ASSERT(wb != NULL); -- cgit v1.2.3