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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-19 14:41:33 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-19 14:41:33 -0700
commitfdb64f93b38a3470fa4db8cd5720b8c731922d1a (patch)
tree3b17370d30a2b580af72b26f37ec7176c9ecdd84 /fs/xfs/linux-2.6
parent2d9ce177e68645945e3366cfe2d66ee3c28cd4f2 (diff)
parentc32676eea19ce29cb74dba0f97b085e83f6b8915 (diff)
Merge branch 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6
* 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6: [XFS] Fix inode size update before data write in xfs_setattr [XFS] Allow punching holes to free space when at ENOSPC [XFS] Implement ->page_mkwrite in XFS. [FS] Implement block_page_mkwrite. Manually fix up conflict with Nick's VM fault handling patches in fs/xfs/linux-2.6/xfs_file.c Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/xfs/linux-2.6')
-rw-r--r--fs/xfs/linux-2.6/xfs_file.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index 2d4be2f247b..0d4001eafd1 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -413,6 +413,20 @@ xfs_file_open_exec(
}
#endif /* HAVE_FOP_OPEN_EXEC */
+/*
+ * mmap()d file has taken write protection fault and is being made
+ * writable. We can set the page state up correctly for a writable
+ * page, which means we can do correct delalloc accounting (ENOSPC
+ * checking!) and unwritten extent mapping.
+ */
+STATIC int
+xfs_vm_page_mkwrite(
+ struct vm_area_struct *vma,
+ struct page *page)
+{
+ return block_page_mkwrite(vma, page, xfs_get_blocks);
+}
+
const struct file_operations xfs_file_operations = {
.llseek = generic_file_llseek,
.read = do_sync_read,
@@ -465,11 +479,13 @@ const struct file_operations xfs_dir_file_operations = {
static struct vm_operations_struct xfs_file_vm_ops = {
.fault = filemap_fault,
+ .page_mkwrite = xfs_vm_page_mkwrite,
};
#ifdef CONFIG_XFS_DMAPI
static struct vm_operations_struct xfs_dmapi_file_vm_ops = {
.fault = xfs_vm_fault,
+ .page_mkwrite = xfs_vm_page_mkwrite,
#ifdef HAVE_VMOP_MPROTECT
.mprotect = xfs_vm_mprotect,
#endif