From: Christoph Lameter <clameter@sgi.com>
To: akpm@linux-foundation.org
Cc: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org
Cc: Christoph Hellwig <hch@lst.de>, Mel Gorman <mel@skynet.ie>
Cc: William Lee Irwin III <wli@holomorphy.com>, David Chinner <dgc@sgi.com>
Cc: Jens Axboe <jens.axboe@oracle.com>, Badari Pulavarty <pbadari@gmail.com>
Cc: Maxim Levitsky <maximlevitsky@gmail.com>,
Fengguang Wu <fengguang.wu@gmail.com>
Cc: swin wang <wangswin@gmail.com>, totty.lu@gmail.com, hugh@veritas.com
Cc: joern@lazybastard.org
Subject: [patch 18/19] Use page_cache_xxx for fs/xfs
Date: Fri, 30 Nov 2007 09:35:06 -0800 [thread overview]
Message-ID: <20071130173510.575451395@sgi.com> (raw)
In-Reply-To: 20071130173448.951783014@sgi.com
[-- Attachment #1: 0019-Use-page_cache_xxx-for-fs-xfs.patch --]
[-- Type: text/plain, Size: 6889 bytes --]
Use page_cache_xxx for fs/xfs
Reviewed-by: Dave Chinner <dgc@sgi.com>
Signed-off-by: Christoph Lameter <clameter@sgi.com>
---
fs/xfs/linux-2.6/xfs_aops.c | 55 ++++++++++++++++++++++----------------------
fs/xfs/linux-2.6/xfs_lrw.c | 4 +--
2 files changed, 30 insertions(+), 29 deletions(-)
Index: mm/fs/xfs/linux-2.6/xfs_aops.c
===================================================================
--- mm.orig/fs/xfs/linux-2.6/xfs_aops.c 2007-11-29 11:24:19.606866627 -0800
+++ mm/fs/xfs/linux-2.6/xfs_aops.c 2007-11-29 11:29:55.115116317 -0800
@@ -75,7 +75,7 @@ xfs_page_trace(
xfs_inode_t *ip;
bhv_vnode_t *vp = vn_from_inode(inode);
loff_t isize = i_size_read(inode);
- loff_t offset = page_offset(page);
+ loff_t offset = page_cache_pos(page->mapping, page->index, 0);
int delalloc = -1, unmapped = -1, unwritten = -1;
if (page_has_buffers(page))
@@ -618,7 +618,7 @@ xfs_probe_page(
break;
} while ((bh = bh->b_this_page) != head);
} else
- ret = mapped ? 0 : PAGE_CACHE_SIZE;
+ ret = mapped ? 0 : page_cache_size(page->mapping);
}
return ret;
@@ -645,7 +645,7 @@ xfs_probe_cluster(
} while ((bh = bh->b_this_page) != head);
/* if we reached the end of the page, sum forwards in following pages */
- tlast = i_size_read(inode) >> PAGE_CACHE_SHIFT;
+ tlast = page_cache_index(inode->i_mapping, i_size_read(inode));
tindex = startpage->index + 1;
/* Prune this back to avoid pathological behavior */
@@ -663,14 +663,14 @@ xfs_probe_cluster(
size_t pg_offset, pg_len = 0;
if (tindex == tlast) {
- pg_offset =
- i_size_read(inode) & (PAGE_CACHE_SIZE - 1);
+ pg_offset = page_cache_offset(inode->i_mapping,
+ i_size_read(inode));
if (!pg_offset) {
done = 1;
break;
}
} else
- pg_offset = PAGE_CACHE_SIZE;
+ pg_offset = page_cache_size(inode->i_mapping);
if (page->index == tindex && !TestSetPageLocked(page)) {
pg_len = xfs_probe_page(page, pg_offset, mapped);
@@ -752,7 +752,8 @@ xfs_convert_page(
int bbits = inode->i_blkbits;
int len, page_dirty;
int count = 0, done = 0, uptodate = 1;
- xfs_off_t offset = page_offset(page);
+ struct address_space *map = inode->i_mapping;
+ xfs_off_t offset = page_cache_pos(map, page->index, 0);
if (page->index != tindex)
goto fail;
@@ -760,7 +761,7 @@ xfs_convert_page(
goto fail;
if (PageWriteback(page))
goto fail_unlock_page;
- if (page->mapping != inode->i_mapping)
+ if (page->mapping != map)
goto fail_unlock_page;
if (!xfs_is_delayed_page(page, (*ioendp)->io_type))
goto fail_unlock_page;
@@ -772,20 +773,19 @@ xfs_convert_page(
* Derivation:
*
* End offset is the highest offset that this page should represent.
- * If we are on the last page, (end_offset & (PAGE_CACHE_SIZE - 1))
- * will evaluate non-zero and be less than PAGE_CACHE_SIZE and
+ * If we are on the last page, (end_offset & page_cache_mask())
+ * will evaluate non-zero and be less than page_cache_size() and
* hence give us the correct page_dirty count. On any other page,
* it will be zero and in that case we need page_dirty to be the
* count of buffers on the page.
*/
end_offset = min_t(unsigned long long,
- (xfs_off_t)(page->index + 1) << PAGE_CACHE_SHIFT,
+ (xfs_off_t)page_cache_pos(map, page->index + 1, 0),
i_size_read(inode));
len = 1 << inode->i_blkbits;
- p_offset = min_t(unsigned long, end_offset & (PAGE_CACHE_SIZE - 1),
- PAGE_CACHE_SIZE);
- p_offset = p_offset ? roundup(p_offset, len) : PAGE_CACHE_SIZE;
+ p_offset = page_cache_offset(map, end_offset);
+ p_offset = p_offset ? roundup(p_offset, len) : page_cache_size(map);
page_dirty = p_offset / len;
bh = head = page_buffers(page);
@@ -941,6 +941,7 @@ xfs_page_state_convert(
int page_dirty, count = 0;
int trylock = 0;
int all_bh = unmapped;
+ struct address_space *map = inode->i_mapping;
if (startio) {
if (wbc->sync_mode == WB_SYNC_NONE && wbc->nonblocking)
@@ -949,11 +950,11 @@ xfs_page_state_convert(
/* Is this page beyond the end of the file? */
offset = i_size_read(inode);
- end_index = offset >> PAGE_CACHE_SHIFT;
- last_index = (offset - 1) >> PAGE_CACHE_SHIFT;
+ end_index = page_cache_index(map, offset);
+ last_index = page_cache_index(map, (offset - 1));
if (page->index >= end_index) {
if ((page->index >= end_index + 1) ||
- !(i_size_read(inode) & (PAGE_CACHE_SIZE - 1))) {
+ !(page_cache_offset(map, i_size_read(inode)))) {
if (startio)
unlock_page(page);
return 0;
@@ -967,22 +968,22 @@ xfs_page_state_convert(
* Derivation:
*
* End offset is the highest offset that this page should represent.
- * If we are on the last page, (end_offset & (PAGE_CACHE_SIZE - 1))
- * will evaluate non-zero and be less than PAGE_CACHE_SIZE and
- * hence give us the correct page_dirty count. On any other page,
+ * If we are on the last page, (page_cache_offset(mapping, end_offset))
+ * will evaluate non-zero and be less than page_cache_size(mapping)
+ * and hence give us the correct page_dirty count. On any other page,
* it will be zero and in that case we need page_dirty to be the
* count of buffers on the page.
*/
end_offset = min_t(unsigned long long,
- (xfs_off_t)(page->index + 1) << PAGE_CACHE_SHIFT, offset);
+ (xfs_off_t)page_cache_pos(map, page->index + 1, 0), offset);
len = 1 << inode->i_blkbits;
- p_offset = min_t(unsigned long, end_offset & (PAGE_CACHE_SIZE - 1),
- PAGE_CACHE_SIZE);
- p_offset = p_offset ? roundup(p_offset, len) : PAGE_CACHE_SIZE;
+ p_offset = page_cache_offset(map, end_offset);
+ p_offset = p_offset ? roundup(p_offset, len) : page_cache_size(map);
+
page_dirty = p_offset / len;
bh = head = page_buffers(page);
- offset = page_offset(page);
+ offset = page_cache_pos(map, page->index, 0);
flags = BMAPI_READ;
type = IOMAP_NEW;
@@ -1129,8 +1130,8 @@ xfs_page_state_convert(
xfs_start_page_writeback(page, wbc, 1, count);
if (ioend && iomap_valid) {
- offset = (iomap.iomap_offset + iomap.iomap_bsize - 1) >>
- PAGE_CACHE_SHIFT;
+ offset = page_cache_index(map,
+ (iomap.iomap_offset + iomap.iomap_bsize - 1));
tlast = min_t(pgoff_t, offset, last_index);
xfs_cluster_write(inode, page->index + 1, &iomap, &ioend,
wbc, startio, all_bh, tlast);
Index: mm/fs/xfs/linux-2.6/xfs_lrw.c
===================================================================
--- mm.orig/fs/xfs/linux-2.6/xfs_lrw.c 2007-11-29 11:24:19.618866869 -0800
+++ mm/fs/xfs/linux-2.6/xfs_lrw.c 2007-11-29 11:29:55.115116317 -0800
@@ -142,8 +142,8 @@ xfs_iozero(
unsigned offset, bytes;
void *fsdata;
- offset = (pos & (PAGE_CACHE_SIZE -1)); /* Within page */
- bytes = PAGE_CACHE_SIZE - offset;
+ offset = page_cache_offset(mapping, pos);
+ bytes = page_cache_size(mapping) - offset;
if (bytes > count)
bytes = count;
--
next prev parent reply other threads:[~2007-11-30 17:35 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-30 17:34 [patch 00/19] Page cache: Replace PAGE_CACHE_xx with inline functions V2 Christoph Lameter
2007-11-30 17:34 ` [patch 01/19] Define functions for page cache handling Christoph Lameter
2007-12-03 22:10 ` Andrew Morton
2007-12-04 5:59 ` David Chinner
2007-12-18 20:20 ` Christoph Lameter
2007-11-30 17:34 ` [patch 02/19] Use page_cache_xxx functions in mm/filemap.c Christoph Lameter
2007-11-30 17:34 ` [patch 03/19] Use page_cache_xxx in mm/page-writeback.c Christoph Lameter
2007-11-30 17:34 ` [patch 04/19] Use page_cache_xxx in mm/truncate.c Christoph Lameter
2007-11-30 17:34 ` [patch 05/19] Use page_cache_xxx in mm/rmap.c Christoph Lameter
2007-11-30 17:34 ` [patch 06/19] Use page_cache_xxx in mm/filemap_xip.c Christoph Lameter
2007-11-30 17:34 ` [patch 07/19] Use page_cache_xxx in mm/migrate.c Christoph Lameter
2007-12-04 5:45 ` David Chinner
2007-11-30 17:34 ` [patch 08/19] Use page_cache_xxx in fs/libfs.c Christoph Lameter
2007-11-30 17:34 ` [patch 09/19] Use page_cache_xxx in fs/sync Christoph Lameter
2007-11-30 17:34 ` [patch 10/19] Use page_cache_xxx in fs/buffer.c Christoph Lameter
2007-11-30 17:34 ` [patch 11/19] Use page_cache_xxx in mm/mpage.c Christoph Lameter
2007-11-30 17:35 ` [patch 12/19] Use page_cache_xxx in mm/fadvise.c Christoph Lameter
2007-11-30 17:35 ` [patch 13/19] Use page_cache_xxx in fs/splice.c Christoph Lameter
2007-11-30 17:35 ` [patch 14/19] Use page_cache_xxx in ext2 Christoph Lameter
2007-11-30 17:35 ` [patch 15/19] Use page_cache_xxx in fs/ext3 Christoph Lameter
2007-11-30 17:35 ` [patch 16/19] Use page_cache_xxx in fs/ext4 Christoph Lameter
2007-11-30 17:35 ` [patch 17/19] Use page_cache_xxx in fs/reiserfs Christoph Lameter
2007-11-30 17:35 ` Christoph Lameter [this message]
2007-11-30 17:35 ` [patch 19/19] Use page_cache_xxx in drivers/block/rd.c Christoph Lameter
-- strict thread matches above, loose matches on Subject: below --
2007-11-29 1:10 [patch 00/19] Page cache: Replace PAGE_CACHE_xx with inline functions Christoph Lameter
2007-11-29 1:11 ` [patch 18/19] Use page_cache_xxx for fs/xfs Christoph Lameter
2007-11-29 3:03 ` David Chinner
2007-11-29 3:28 ` Christoph Lameter
2007-11-29 3:58 ` David Chinner
2007-11-29 4:06 ` Christoph Lameter
2007-11-29 4:10 ` David Chinner
2007-11-29 8:24 ` Andrew Morton
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