Commit 49383b0e authored May 19, 2008 by David Chinner Committed by Lachlan McIlroy May 23, 2008

[XFS] Don't allow memory reclaim to wait on the filesystem in inode


writeback

If we allow memory reclaim to wait on the pages under writeback in inode
cluster writeback we could deadlock because we are currently holding the
ILOCK on the initial writeback inode which is needed in data I/O
completion to change the file size or do unwritten extent conversion
before the pages are taken out of writeback state.

SGI-PV: 981091
SGI-Modid: xfs-linux-melb:xfs-kern:31015a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>

parent 978b7237

fs/xfs/xfs_inode.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2986,7 +2986,7 @@ xfs_iflush_cluster(
		ASSERT(pag->pag_ici_init);

		ilist_size = XFS_INODE_CLUSTER_SIZE(mp) * sizeof(xfs_inode_t *);
		ilist = kmem_alloc(ilist_size, KM_MAYFAIL);
		ilist = kmem_alloc(ilist_size, KM_MAYFAIL\|KM_NOFS);
		if (!ilist)
		return 0;

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