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Fix page allocation flags in grow_dev_page()

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grow_dev_page() simply passes GFP_NOFS to find_or_create_page.  This means
the allocation of radix tree nodes is done with GFP_NOFS and the allocation
of a new page is done using GFP_NOFS.

The mapping has a flags field that contains the necessary allocation flags
for the page cache allocation.  These need to be consulted in order to get
DMA and HIGHMEM allocations etc right.  And yes a blockdev could be
allowing Highmem allocations if its a ramdisk.

Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Christoph Lameter 2007-05-16 22:11:21 -07:00 committed by Linus Torvalds
parent 8d98a690f5
commit ea125892a1
1 changed files with 2 additions and 1 deletions
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3
fs/buffer.c
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@ -981,7 +981,8 @@ grow_dev_page(struct block_device *bdev, sector_t block,
struct page *page; struct page *page;
struct buffer_head *bh; struct buffer_head *bh;
page = find_or_create_page(inode->i_mapping, index, GFP_NOFS); page = find_or_create_page(inode->i_mapping, index,
mapping_gfp_mask(inode->i_mapping) & ~__GFP_FS);
if (!page) if (!page)
return NULL; return NULL;