[XFS] Make hole punching at EOF atomic.

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If hole punching at EOF is done as two steps (i.e. truncate then extend)
the file is in a transient state between the two steps where an
application can see the incorrect file size. Punching a hole to EOF needs
to be treated in teh same way as all other hole punching cases so that the
file size is never seen to change.

SGI-PV: 962012
SGI-Modid: xfs-linux-melb:xfs-kern:28641a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Vlad Apostolov <vapo@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>

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This commit is contained in:

David Chinner 2007-05-24 15:22:19 +10:00 • committed by Tim Shimmin

parent 511105b3d7

commit 92dfe8d266

2 changed files with 29 additions and 13 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

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14

fs/xfs/xfs_rw.h

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28

fs/xfs/xfs_vnodeops.c

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