mm: page_mkwrite change prototype to match fault
commitc2ec175c39f62949438354f603f4aa170846aabb
authorNick Piggin <npiggin@suse.de>
Tue, 31 Mar 2009 22:23:21 +0000 (31 15:23 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 1 Apr 2009 15:59:14 +0000 (1 08:59 -0700)
treef2c9bf1bec2deabe2d3a5092405b027637b6ead3
parentc2fdf3a9b2d52842808a8e551b53b55dd9b45030
mm: page_mkwrite change prototype to match fault

Change the page_mkwrite prototype to take a struct vm_fault, and return
VM_FAULT_xxx flags.  There should be no functional change.

This makes it possible to return much more detailed error information to
the VM (and also can provide more information eg.  virtual_address to the
driver, which might be important in some special cases).

This is required for a subsequent fix.  And will also make it easier to
merge page_mkwrite() with fault() in future.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <joel.becker@oracle.com>
Cc: Artem Bityutskiy <dedekind@infradead.org>
Cc: Felix Blyakher <felixb@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 files changed:
Documentation/filesystems/Locking
drivers/video/fb_defio.c
fs/btrfs/ctree.h
fs/btrfs/inode.c
fs/buffer.c
fs/ext4/ext4.h
fs/ext4/inode.c
fs/fuse/file.c
fs/gfs2/ops_file.c
fs/nfs/file.c
fs/ocfs2/mmap.c
fs/ubifs/file.c
fs/xfs/linux-2.6/xfs_file.c
include/linux/buffer_head.h
include/linux/mm.h
mm/memory.c