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| author | Denis Chaplygin | 2017-01-31 12:51:28 +0100 |
|---|---|---|
| committer | Karel Zak | 2017-01-31 12:51:28 +0100 |
| commit | 833f9a7aae713278eec5f85266597482f18c7370 (patch) | |
| tree | 86f83f6e5cf4153a53497d89dd727ca3c0dead23 /sys-utils/fallocate.1 | |
| parent | lscpu: Detect Windows Subsystem for Linux (diff) | |
| download | kernel-qcow2-util-linux-833f9a7aae713278eec5f85266597482f18c7370.tar.gz kernel-qcow2-util-linux-833f9a7aae713278eec5f85266597482f18c7370.tar.xz kernel-qcow2-util-linux-833f9a7aae713278eec5f85266597482f18c7370.zip | |
fallocate: Added posix_fallocate() support.
No all filesystems support Linux fallocate. The new option allow use
posix implementation if necessary.
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'sys-utils/fallocate.1')
| -rw-r--r-- | sys-utils/fallocate.1 | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/sys-utils/fallocate.1 b/sys-utils/fallocate.1 index 6133b71c8..0cbb5c994 100644 --- a/sys-utils/fallocate.1 +++ b/sys-utils/fallocate.1 @@ -17,6 +17,13 @@ fallocate \- preallocate or deallocate space to a file .RB [ \-l .IR length ] .I filename +.PP +.B fallocate \-x +.RB [ \-o +.IR offset ] +.RB \-l +.IR length +.I filename .SH DESCRIPTION .B fallocate is used to manipulate the allocated disk space for a file, either to deallocate @@ -88,6 +95,10 @@ Btrfs (since Linux 3.7) and tmpfs (since Linux 3.5). .BR \-v , " \-\-verbose" Enable verbose mode. .TP +.BR \-x , " \-\-posix" +Enable POSIX operation mode. In that mode allocation operation always completes, +but it may take longer time when fast allocation is not supported by the underlying filesystem. +.TP .BR \-z , " \-\-zero\-range" Zeroes space in the byte range starting at \fIoffset\fP and continuing for \fIlength\fR bytes. Within the specified range, blocks are |