Lukas Czerner b8a8684502 ext4: Introduce FALLOC_FL_ZERO_RANGE flag for fallocate ... Introduce new FALLOC_FL_ZERO_RANGE flag for fallocate. This has the same functionality as xfs ioctl XFS_IOC_ZERO_RANGE. It can be used to convert a range of file to zeros preferably without issuing data IO. Blocks should be preallocated for the regions that span holes in the file, and the entire range is preferable converted to unwritten extents This can be also used to preallocate blocks past EOF in the same way as with fallocate. Flag FALLOC_FL_KEEP_SIZE which should cause the inode size to remain the same. Also add appropriate tracepoints. Signed-off-by: Lukas Czerner <lczerner@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>		2014-03-18 18:05:35 -04:00
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events	ext4: Introduce FALLOC_FL_ZERO_RANGE flag for fallocate	2014-03-18 18:05:35 -04:00
define_trace.h	tracing: Add DEFINE_EVENT_FN() macro	2013-06-20 22:24:32 -07:00
ftrace.h	tracing: Consolidate event trigger code	2014-01-09 21:20:07 -05:00
syscall.h	tracing: Add missing syscall_metadata comment	2013-07-01 20:34:25 -04:00