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13 June 2022, 11:31:42 UTC
Revision d1afb678ce77b930334a8a640a05b8e68178a377 authored by Lachlan McIlroy on 27 November 2007, 06:01:24 UTC, committed by Lachlan McIlroy on 10 December 2007, 02:46:20 UTC 
[XFS] Fixed a few bugs in xfs_buf_associate_memory()
 
- calculation of 'page_count' was incorrect as it did not
  consider the offset of 'mem' into the first page. The
  logic to bump 'page_count' didn't work if 'len' was <=
  PAGE_CACHE_SIZE (ie offset = 3k, len = 2k).
- setting b_buffer_length to 'len' is incorrect if 'offset'
  is > 0. Set it to the total length of the buffer.
- I suspect that passing a non-aligned address into
  mem_to_page() for the first page may have been causing
  issues - don't know but just tidy up that code anyway.

SGI-PV: 971596
SGI-Modid: xfs-linux-melb:xfs-kern:30143a

Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
1 parent cd57e59
History
Tip revision: d1afb678ce77b930334a8a640a05b8e68178a377 authored by Lachlan McIlroy on 27 November 2007, 06:01:24 UTC
[XFS] Fixed a few bugs in xfs_buf_associate_memory()
Tip revision: d1afb67
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