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Diffstat (limited to 'sys-utils/fallocate.1')
| -rw-r--r-- | sys-utils/fallocate.1 | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sys-utils/fallocate.1 b/sys-utils/fallocate.1 index d4821dcd1..fe5072ae8 100644 --- a/sys-utils/fallocate.1 +++ b/sys-utils/fallocate.1 @@ -72,6 +72,12 @@ The option may not be specified for the collapse-range operation. .sp Available since Linux 3.15 for ext4 (only for extent-based files) and XFS. +.sp +A filesystem may place limitations on the granularity of the operation, in +order to ensure efficient implementation. Typically, offset and len must be a +multiple of the filesystem logical block size, which varies according to the +filesystem type and configuration. If a filesystem has such a requirement, +the operation will fail with the error EINVAL if this requirement is violated. .TP .BR \-d ", " \-\-dig\-holes Detect and dig holes. |