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Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6

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* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6: (21 commits)
  ext3: PTR_ERR return of wrong pointer in setup_new_group_blocks()
  ext3: Fix data / filesystem corruption when write fails to copy data
  ext4: Support for 64-bit quota format
  ext3: Support for vfsv1 quota format
  quota: Implement quota format with 64-bit space and inode limits
  quota: Move definition of QFMT_OCFS2 to linux/quota.h
  ext2: fix comment in ext2_find_entry about return values
  ext3: Unify log messages in ext3
  ext2: clear uptodate flag on super block I/O error
  ext2: Unify log messages in ext2
  ext3: make "norecovery" an alias for "noload"
  ext3: Don't update the superblock in ext3_statfs()
  ext3: journal all modifications in ext3_xattr_set_handle
  ext2: Explicitly assign values to on-disk enum of filetypes
  quota: Fix WARN_ON in lookup_one_len
  const: struct quota_format_ops
  ubifs: remove manual O_SYNC handling
  afs: remove manual O_SYNC handling
  kill wait_on_page_writeback_range
  vfs: Implement proper O_SYNC semantics
  ...
This commit is contained in:
Linus Torvalds
2009-12-11 15:31:13 -08:00
parent f4d544ee57 8e0eb4011b
commit 3126c136bc
50 changed files with 1004 additions and 711 deletions
Download Patch File Download Diff File Expand all files Collapse all files
mm/filemap.c
+14 -35
View File
@@ -260,27 +260,27 @@ int filemap_flush(struct address_space *mapping)
EXPORT_SYMBOL(filemap_flush);
/**
* wait_on_page_writeback_range - wait for writeback to complete
* @mapping: target address_space
* @start: beginning page index
* @end: ending page index
* filemap_fdatawait_range - wait for writeback to complete
* @mapping: address space structure to wait for
* @start_byte: offset in bytes where the range starts
* @end_byte: offset in bytes where the range ends (inclusive)
*
* Wait for writeback to complete against pages indexed by start->end
* inclusive
* Walk the list of under-writeback pages of the given address space
* in the given range and wait for all of them.
*/
int wait_on_page_writeback_range(struct address_space *mapping,
pgoff_t start, pgoff_t end)
int filemap_fdatawait_range(struct address_space *mapping, loff_t start_byte,
loff_t end_byte)
{
pgoff_t index = start_byte >> PAGE_CACHE_SHIFT;
pgoff_t end = end_byte >> PAGE_CACHE_SHIFT;
struct pagevec pvec;
int nr_pages;
int ret = 0;
pgoff_t index;
if (end < start)
if (end_byte < start_byte)
return 0;
pagevec_init(&pvec, 0);
index = start;
while ((index <= end) &&
(nr_pages = pagevec_lookup_tag(&pvec, mapping, &index,
PAGECACHE_TAG_WRITEBACK,
@@ -310,25 +310,6 @@ int wait_on_page_writeback_range(struct address_space *mapping,
return ret;
}
/**
* filemap_fdatawait_range - wait for all under-writeback pages to complete in a given range
* @mapping: address space structure to wait for
* @start: offset in bytes where the range starts
* @end: offset in bytes where the range ends (inclusive)
*
* Walk the list of under-writeback pages of the given address space
* in the given range and wait for all of them.
*
* This is just a simple wrapper so that callers don't have to convert offsets
* to page indexes themselves
*/
int filemap_fdatawait_range(struct address_space *mapping, loff_t start,
loff_t end)
{
return wait_on_page_writeback_range(mapping, start >> PAGE_CACHE_SHIFT,
end >> PAGE_CACHE_SHIFT);
}
EXPORT_SYMBOL(filemap_fdatawait_range);
/**
@@ -345,8 +326,7 @@ int filemap_fdatawait(struct address_space *mapping)
if (i_size == 0)
return 0;
return wait_on_page_writeback_range(mapping, 0,
(i_size - 1) >> PAGE_CACHE_SHIFT);
return filemap_fdatawait_range(mapping, 0, i_size - 1);
}
EXPORT_SYMBOL(filemap_fdatawait);
@@ -393,9 +373,8 @@ int filemap_write_and_wait_range(struct address_space *mapping,
WB_SYNC_ALL);
/* See comment of filemap_write_and_wait() */
if (err != -EIO) {
int err2 = wait_on_page_writeback_range(mapping,
lstart >> PAGE_CACHE_SHIFT,
lend >> PAGE_CACHE_SHIFT);
int err2 = filemap_fdatawait_range(mapping,
lstart, lend);
if (!err)
err = err2;
}