diff options
Diffstat (limited to 'sys-utils/fallocate.1')
| -rw-r--r-- | sys-utils/fallocate.1 | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/sys-utils/fallocate.1 b/sys-utils/fallocate.1 index d462cee9c..efa42c1d2 100644 --- a/sys-utils/fallocate.1 +++ b/sys-utils/fallocate.1 @@ -1,7 +1,7 @@ .\" -*- nroff -*- .TH FALLOCATE 1 "September 2011" "util-linux" "User Commands" .SH NAME -fallocate \- preallocate space to a file +fallocate \- preallocate or deallocate space to a file .SH SYNOPSIS .B fallocate .RB [ \-n ] @@ -13,10 +13,11 @@ fallocate \- preallocate space to a file .I filename .SH DESCRIPTION .B fallocate -is used to preallocate blocks to a file. For filesystems which support the -fallocate system call, this is done quickly by allocating blocks and marking -them as uninitialized, requiring no IO to the data blocks. This is much faster -than creating a file by filling it with zeros. +is used to manipulate the allocated disk space for a file, either to deallocate +or preallocate it. For filesystems which support the fallocate system call, +preallocation is done quickly by allocating blocks and marking them as +uninitialized, requiring no IO to the data blocks. This is much faster than +creating a file by filling it with zeros. .PP As of the Linux Kernel v2.6.31, the fallocate system call is supported by the btrfs, ext4, ocfs2, and xfs filesystems. |