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Merge branch 'PAGE_CACHE_SIZE-removal'

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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
This commit is contained in:
Linus Torvalds
2016-04-04 10:50:24 -07:00
parent 9735a22799 1fa64f198b
commit 4a2d057e4f
398 changed files with 2840 additions and 2869 deletions
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10
fs/orangefs/inode.c
View File

@@ -18,8 +18,8 @@ static int read_one_page(struct page *page)
int max_block;
ssize_t bytes_read = 0;
struct inode *inode = page->mapping->host;
const __u32 blocksize = PAGE_CACHE_SIZE; /* inode->i_blksize */
const __u32 blockbits = PAGE_CACHE_SHIFT; /* inode->i_blkbits */
const __u32 blocksize = PAGE_SIZE; /* inode->i_blksize */
const __u32 blockbits = PAGE_SHIFT; /* inode->i_blkbits */
struct iov_iter to;
struct bio_vec bv = {.bv_page = page, .bv_len = PAGE_SIZE};
@@ -86,7 +86,7 @@ static int orangefs_readpages(struct file *file,
"failure adding page to cache, read_one_page returned: %d\n",
ret);
} else {
page_cache_release(page);
put_page(page);
}
}
BUG_ON(!list_empty(pages));
@@ -328,7 +328,7 @@ static int orangefs_init_iops(struct inode *inode)
case S_IFREG:
inode->i_op = &orangefs_file_inode_operations;
inode->i_fop = &orangefs_file_operations;
inode->i_blkbits = PAGE_CACHE_SHIFT;
inode->i_blkbits = PAGE_SHIFT;
break;
case S_IFLNK:
inode->i_op = &orangefs_symlink_inode_operations;
@@ -456,7 +456,7 @@ struct inode *orangefs_new_inode(struct super_block *sb, struct inode *dir,
inode->i_uid = current_fsuid();
inode->i_gid = current_fsgid();
inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
inode->i_size = PAGE_CACHE_SIZE;
inode->i_size = PAGE_SIZE;
inode->i_rdev = dev;
error = insert_inode_locked4(inode, hash, orangefs_test_inode, ref);

4
fs/orangefs/orangefs-bufmap.c
View File

@@ -170,7 +170,7 @@ orangefs_bufmap_unmap(struct orangefs_bufmap *bufmap)
int i;
for (i = 0; i < bufmap->page_count; i++)
page_cache_release(bufmap->page_array[i]);
put_page(bufmap->page_array[i]);
}
static void
@@ -299,7 +299,7 @@ orangefs_bufmap_map(struct orangefs_bufmap *bufmap,
for (i = 0; i < ret; i++) {
SetPageError(bufmap->page_array[i]);
page_cache_release(bufmap->page_array[i]);
put_page(bufmap->page_array[i]);
}
return -ENOMEM;
}

2
fs/orangefs/orangefs-utils.c
View File

@@ -303,7 +303,7 @@ int orangefs_inode_getattr(struct inode *inode, int new, int size)
}
break;
case S_IFDIR:
inode->i_size = PAGE_CACHE_SIZE;
inode->i_size = PAGE_SIZE;
orangefs_inode->blksize = (1 << inode->i_blkbits);
spin_lock(&inode->i_lock);
inode_set_bytes(inode, inode->i_size);