GFS2: Change truncate page allocation to be GFP_NOFS
This patch changes the page allocation in gfs2_block_truncate_page and two others to GFP_NOFS to avoid deadlock in low-memory conditions. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
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@ -60,7 +60,7 @@ static int gfs2_unstuffer_page(struct gfs2_inode *ip, struct buffer_head *dibh,
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int release = 0;
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int release = 0;
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if (!page || page->index) {
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if (!page || page->index) {
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page = grab_cache_page(inode->i_mapping, 0);
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page = find_or_create_page(inode->i_mapping, 0, GFP_NOFS);
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if (!page)
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if (!page)
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return -ENOMEM;
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return -ENOMEM;
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release = 1;
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release = 1;
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@ -930,7 +930,7 @@ static int gfs2_block_truncate_page(struct address_space *mapping, loff_t from)
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struct page *page;
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struct page *page;
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int err;
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int err;
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page = grab_cache_page(mapping, index);
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page = find_or_create_page(mapping, index, GFP_NOFS);
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if (!page)
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if (!page)
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return 0;
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return 0;
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@ -681,7 +681,7 @@ static int gfs2_adjust_quota(struct gfs2_inode *ip, loff_t loc,
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ptr = qp;
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ptr = qp;
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nbytes = sizeof(struct gfs2_quota);
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nbytes = sizeof(struct gfs2_quota);
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get_a_page:
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get_a_page:
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page = grab_cache_page(mapping, index);
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page = find_or_create_page(mapping, index, GFP_NOFS);
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if (!page)
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if (!page)
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return -ENOMEM;
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return -ENOMEM;
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