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authorMark Fasheh <mark.fasheh@oracle.com>2007-01-17 15:53:31 -0500
committerMark Fasheh <mark.fasheh@oracle.com>2007-04-26 18:01:56 -0400
commit3a0782d09c07aa3ec767ba6089cd15cfbfbfc508 (patch)
tree4791919970e11f4b2fb3162481a59a56f5196fe4 /drivers/atm/iphase.c
parent363041a5f74b953ab6b705ac9c88e5eda218a24b (diff)
ocfs2: teach extend/truncate about sparse files
For ocfs2_truncate_file(), we eliminate the "simple" truncate case which no longer exists since i_size is not tied to i_clusters. In ocfs2_extend_file(), we skip the allocation / page zeroing code for file systems which understand sparse files. The core truncate code is changed to do a bottom up tree traversal. This gets abstracted out into it's own function. To make things more readable, most of the special case handling for in-inode extents from ocfs2_do_truncate() is also removed. Though write support for sparse files comes in a later patch, we at least update ocfs2_prepare_inode_for_write() to skip allocation for sparse files. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Diffstat (limited to 'drivers/atm/iphase.c')
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