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author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-04-04 20:50:24 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-04-04 20:50:24 +0300 |
commit | 4a2d057e4fc4f9ebd32351837c14c10a0773b956 (patch) | |
tree | b0ed0187a6839ebed4982fe7589b410222fd4b9a /fs/xfs/xfs_aops.c | |
parent | 9735a22799b9214d17d3c231fe377fc852f042e9 (diff) | |
parent | 1fa64f198b9f8d6ec0f7aec7c18dc94684391140 (diff) | |
download | linux-4a2d057e4fc4f9ebd32351837c14c10a0773b956.tar.xz |
Merge branch 'PAGE_CACHE_SIZE-removal'
Merge PAGE_CACHE_SIZE removal patches from Kirill Shutemov:
"PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} macros were introduced *long* time
ago with promise that one day it will be possible to implement page
cache with bigger chunks than PAGE_SIZE.
This promise never materialized. And unlikely will.
Let's stop pretending that pages in page cache are special. They are
not.
The first patch with most changes has been done with coccinelle. The
second is manual fixups on top.
The third patch removes macros definition"
[ I was planning to apply this just before rc2, but then I spaced out,
so here it is right _after_ rc2 instead.
As Kirill suggested as a possibility, I could have decided to only
merge the first two patches, and leave the old interfaces for
compatibility, but I'd rather get it all done and any out-of-tree
modules and patches can trivially do the converstion while still also
working with older kernels, so there is little reason to try to
maintain the redundant legacy model. - Linus ]
* PAGE_CACHE_SIZE-removal:
mm: drop PAGE_CACHE_* and page_cache_{get,release} definition
mm, fs: remove remaining PAGE_CACHE_* and page_cache_{get,release} usage
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros
Diffstat (limited to 'fs/xfs/xfs_aops.c')
-rw-r--r-- | fs/xfs/xfs_aops.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c index d445a64b979e..e49b2406d15d 100644 --- a/fs/xfs/xfs_aops.c +++ b/fs/xfs/xfs_aops.c @@ -704,7 +704,7 @@ next_buffer: xfs_iunlock(ip, XFS_ILOCK_EXCL); out_invalidate: - xfs_vm_invalidatepage(page, 0, PAGE_CACHE_SIZE); + xfs_vm_invalidatepage(page, 0, PAGE_SIZE); return; } @@ -925,9 +925,9 @@ xfs_do_writepage( * ---------------------------------^------------------| */ offset = i_size_read(inode); - end_index = offset >> PAGE_CACHE_SHIFT; + end_index = offset >> PAGE_SHIFT; if (page->index < end_index) - end_offset = (xfs_off_t)(page->index + 1) << PAGE_CACHE_SHIFT; + end_offset = (xfs_off_t)(page->index + 1) << PAGE_SHIFT; else { /* * Check whether the page to write out is beyond or straddles @@ -940,7 +940,7 @@ xfs_do_writepage( * | | Straddles | * ---------------------------------^-----------|--------| */ - unsigned offset_into_page = offset & (PAGE_CACHE_SIZE - 1); + unsigned offset_into_page = offset & (PAGE_SIZE - 1); /* * Skip the page if it is fully outside i_size, e.g. due to a @@ -971,7 +971,7 @@ xfs_do_writepage( * memory is zeroed when mapped, and writes to that region are * not written out to the file." */ - zero_user_segment(page, offset_into_page, PAGE_CACHE_SIZE); + zero_user_segment(page, offset_into_page, PAGE_SIZE); /* Adjust the end_offset to the end of file */ end_offset = offset; @@ -1475,7 +1475,7 @@ xfs_vm_write_failed( loff_t block_offset; loff_t block_start; loff_t block_end; - loff_t from = pos & (PAGE_CACHE_SIZE - 1); + loff_t from = pos & (PAGE_SIZE - 1); loff_t to = from + len; struct buffer_head *bh, *head; struct xfs_mount *mp = XFS_I(inode)->i_mount; @@ -1491,7 +1491,7 @@ xfs_vm_write_failed( * start of the page by using shifts rather than masks the mismatch * problem. */ - block_offset = (pos >> PAGE_CACHE_SHIFT) << PAGE_CACHE_SHIFT; + block_offset = (pos >> PAGE_SHIFT) << PAGE_SHIFT; ASSERT(block_offset + from == pos); @@ -1558,12 +1558,12 @@ xfs_vm_write_begin( struct page **pagep, void **fsdata) { - pgoff_t index = pos >> PAGE_CACHE_SHIFT; + pgoff_t index = pos >> PAGE_SHIFT; struct page *page; int status; struct xfs_mount *mp = XFS_I(mapping->host)->i_mount; - ASSERT(len <= PAGE_CACHE_SIZE); + ASSERT(len <= PAGE_SIZE); page = grab_cache_page_write_begin(mapping, index, flags); if (!page) @@ -1592,7 +1592,7 @@ xfs_vm_write_begin( truncate_pagecache_range(inode, start, pos + len); } - page_cache_release(page); + put_page(page); page = NULL; } @@ -1620,7 +1620,7 @@ xfs_vm_write_end( { int ret; - ASSERT(len <= PAGE_CACHE_SIZE); + ASSERT(len <= PAGE_SIZE); ret = generic_write_end(file, mapping, pos, len, copied, page, fsdata); if (unlikely(ret < len)) { |