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swh:1:snp:c3bf2749e3476071fa748f67b0ffa2fdc5fe49d9
Revision 4ce159890c00e2cc705e955a939bf1dca7b07ab8 authored by Dave Chinner on 27 January 2011, 01:17:58 UTC, committed by Alex Elder on 28 January 2011, 15:05:36 UTC 
xfs: prevent extsize alignment from exceeding maximum extent size
 
When doing delayed allocation, if the allocation size is for a
maximally sized extent, extent size alignment can push it over this
limit. This results in an assert failure in xfs_bmbt_set_allf() as
the extent length is too large to find in the extent record.

Fix this by ensuring that we allow for space that extent size
alignment requires (up to 2 * (extsize -1) blocks as we have to
handle both head and tail alignment) when limiting the maximum size
of the extent.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
1 parent 14b064c
History
Tip revision: d1221cea11fca0f6946bdd032a45b22cecfc0f99 authored by Linus Torvalds on 13 September 2022, 13:11:38 UTC
Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Tip revision: d1221ce
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