The IOMAP_ flags are now only used inside xfs_aops.c for extent probing
and I/O completion tracking, so more them here, and rename them to IO_*
as there's no mapping involved at all.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Index: xfs/fs/xfs/linux-2.6/xfs_aops.c
===================================================================
--- xfs.orig/fs/xfs/linux-2.6/xfs_aops.c 2010-04-27 18:45:11.776004100
+0200
+++ xfs/fs/xfs/linux-2.6/xfs_aops.c 2010-04-27 20:34:06.333011852 +0200
@@ -44,6 +44,15 @@
#include <linux/pagevec.h>
#include <linux/writeback.h>
+/*
+ * Types of I/O for bmap clustering and I/O completion tracking.
+ */
+enum {
+ IO_READ, /* mapping for a read */
+ IO_DELAY, /* mapping covers delalloc region */
+ IO_UNWRITTEN, /* mapping covers allocated but uninitialized data */
+ IO_NEW /* just allocated */
+};
/*
* Prime number of hash buckets since address is used as the key.
@@ -183,7 +192,7 @@ xfs_setfilesize(
xfs_fsize_t isize;
ASSERT((ip->i_d.di_mode & S_IFMT) == S_IFREG);
- ASSERT(ioend->io_type != IOMAP_READ);
+ ASSERT(ioend->io_type != IO_READ);
if (unlikely(ioend->io_error))
return 0;
@@ -214,7 +223,7 @@ xfs_finish_ioend(
if (atomic_dec_and_test(&ioend->io_remaining)) {
struct workqueue_struct *wq;
- wq = (ioend->io_type == IOMAP_UNWRITTEN) ?
+ wq = (ioend->io_type == IO_UNWRITTEN) ?
xfsconvertd_workqueue : xfsdatad_workqueue;
queue_work(wq, &ioend->io_work);
if (wait)
@@ -237,7 +246,7 @@ xfs_end_io(
* For unwritten extents we need to issue transactions to convert a
* range to normal written extens after the data I/O has finished.
*/
- if (ioend->io_type == IOMAP_UNWRITTEN &&
+ if (ioend->io_type == IO_UNWRITTEN &&
likely(!ioend->io_error && !XFS_FORCED_SHUTDOWN(ip->i_mount))) {
error = xfs_iomap_write_unwritten(ip, ioend->io_offset,
@@ -250,7 +259,7 @@ xfs_end_io(
* We might have to update the on-disk file size after extending
* writes.
*/
- if (ioend->io_type != IOMAP_READ) {
+ if (ioend->io_type != IO_READ) {
error = xfs_setfilesize(ioend);
ASSERT(!error || error == EAGAIN);
}
@@ -723,11 +732,11 @@ xfs_is_delayed_page(
bh = head = page_buffers(page);
do {
if (buffer_unwritten(bh))
- acceptable = (type == IOMAP_UNWRITTEN);
+ acceptable = (type == IO_UNWRITTEN);
else if (buffer_delay(bh))
- acceptable = (type == IOMAP_DELAY);
+ acceptable = (type == IO_DELAY);
else if (buffer_dirty(bh) && buffer_mapped(bh))
- acceptable = (type == IOMAP_NEW);
+ acceptable = (type == IO_NEW);
else
break;
} while ((bh = bh->b_this_page) != head);
@@ -811,9 +820,9 @@ xfs_convert_page(
if (buffer_unwritten(bh) || buffer_delay(bh)) {
if (buffer_unwritten(bh))
- type = IOMAP_UNWRITTEN;
+ type = IO_UNWRITTEN;
else
- type = IOMAP_DELAY;
+ type = IO_DELAY;
if (!xfs_iomap_valid(inode, imap, offset)) {
done = 1;
@@ -835,7 +844,7 @@ xfs_convert_page(
page_dirty--;
count++;
} else {
- type = IOMAP_NEW;
+ type = IO_NEW;
if (buffer_mapped(bh) && all_bh && startio) {
lock_buffer(bh);
xfs_add_to_ioend(inode, bh, offset,
@@ -939,7 +948,7 @@ xfs_aops_discard_page(
loff_t offset = page_offset(page);
ssize_t len = 1 << inode->i_blkbits;
- if (!xfs_is_delayed_page(page, IOMAP_DELAY))
+ if (!xfs_is_delayed_page(page, IO_DELAY))
goto out_invalidate;
if (XFS_FORCED_SHUTDOWN(ip->i_mount))
@@ -1106,7 +1115,7 @@ xfs_page_state_convert(
bh = head = page_buffers(page);
offset = page_offset(page);
flags = BMAPI_READ;
- type = IOMAP_NEW;
+ type = IO_NEW;
/* TODO: cleanup count and page_dirty */
@@ -1149,13 +1158,13 @@ xfs_page_state_convert(
iomap_valid = 0;
if (buffer_unwritten(bh)) {
- type = IOMAP_UNWRITTEN;
+ type = IO_UNWRITTEN;
flags = BMAPI_WRITE | BMAPI_IGNSTATE;
} else if (buffer_delay(bh)) {
- type = IOMAP_DELAY;
+ type = IO_DELAY;
flags = BMAPI_ALLOCATE | trylock;
} else {
- type = IOMAP_NEW;
+ type = IO_NEW;
flags = BMAPI_WRITE | BMAPI_MMAP;
}
@@ -1169,7 +1178,7 @@ xfs_page_state_convert(
* for unwritten extent conversion.
*/
new_ioend = 1;
- if (type == IOMAP_NEW) {
+ if (type == IO_NEW) {
size = xfs_probe_cluster(inode,
page, bh, head, 0);
} else {
@@ -1214,14 +1223,14 @@ xfs_page_state_convert(
}
/*
- * We set the type to IOMAP_NEW in case we are doing a
+ * We set the type to IO_NEW in case we are doing a
* small write at EOF that is extending the file but
* without needing an allocation. We need to update the
* file size on I/O completion in this case so it is
* the same case as having just allocated a new extent
* that we are writing into for the first time.
*/
- type = IOMAP_NEW;
+ type = IO_NEW;
if (trylock_buffer(bh)) {
ASSERT(buffer_mapped(bh));
if (iomap_valid)
@@ -1593,7 +1602,7 @@ xfs_end_io_direct(
*/
ioend->io_offset = offset;
ioend->io_size = size;
- if (ioend->io_type == IOMAP_READ) {
+ if (ioend->io_type == IO_READ) {
xfs_finish_ioend(ioend, 0);
} else if (private && size > 0) {
xfs_finish_ioend(ioend, is_sync_kiocb(iocb));
@@ -1604,7 +1613,7 @@ xfs_end_io_direct(
* didn't map an unwritten extent so switch it's completion
* handler.
*/
- ioend->io_type = IOMAP_NEW;
+ ioend->io_type = IO_NEW;
xfs_finish_ioend(ioend, 0);
}
@@ -1632,7 +1641,7 @@ xfs_vm_direct_IO(
bdev = xfs_find_bdev_for_inode(inode);
iocb->private = xfs_alloc_ioend(inode, rw == WRITE ?
- IOMAP_UNWRITTEN : IOMAP_READ);
+ IO_UNWRITTEN : IO_READ);
ret = blockdev_direct_IO_no_locking(rw, iocb, inode, bdev, iov,
offset, nr_segs,
Index: xfs/fs/xfs/xfs_iomap.h
===================================================================
--- xfs.orig/fs/xfs/xfs_iomap.h 2010-04-27 18:45:11.784022678 +0200
+++ xfs/fs/xfs/xfs_iomap.h 2010-04-27 20:20:17.308010875 +0200
@@ -18,14 +18,6 @@
#ifndef __XFS_IOMAP_H__
#define __XFS_IOMAP_H__
-typedef enum { /* iomap_flags values */
- IOMAP_READ = 0, /* mapping for a read */
- IOMAP_DELAY = 0x04, /* mapping covers delalloc region */
- IOMAP_UNWRITTEN = 0x20, /* mapping covers allocated */
- /* but uninitialized file data */
- IOMAP_NEW = 0x40 /* just allocate */
-} iomap_flags_t;
-
typedef enum {
/* base extent manipulation calls */
BMAPI_READ = (1 << 0), /* read extents */
|