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swh:1:snp:77163734605b0ec556b01d897b7bb4a7e30d46b6
Revision 2fd6f6ec64ff347447d26646ac6188f3658b383c authored by Lachlan McIlroy on 17 September 2008, 06:52:50 UTC, committed by Lachlan McIlroy on 17 September 2008, 06:52:50 UTC 
[XFS] Don't do I/O beyond eof when unreserving space
 
When unreserving space with boundaries that are not block aligned we round
up the start and round down the end boundaries and then use this function,
xfs_zero_remaining_bytes(), to zero the parts of the blocks that got
dropped during the rounding. The problem is we don't consider if these
blocks are beyond eof. Worse still is if we encounter delayed allocations
beyond eof we will try to use the magic delayed allocation block number as
a real block number. If the file size is ever extended to expose these
blocks then we'll go through xfs_zero_eof() to zero them anyway.

SGI-PV: 983683

SGI-Modid: xfs-linux-melb:xfs-kern:32055a

Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
1 parent e1f5dbd
History
Tip revision: a4412fdd49dc011bcc2c0d81ac4cab7457092650 authored by Steven Rostedt (Google) on 21 November 2022, 15:44:03 UTC
error-injection: Add prompt for function error injection
Tip revision: a4412fd
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