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| author | Bryn M. Reeves <bmr@redhat.com> | 2016-06-30 21:46:43 +0100 |
|---|---|---|
| committer | Bryn M. Reeves <bmr@redhat.com> | 2016-07-08 14:34:41 +0100 |
| commit | e1048259165b09a35c45170cefbbccb4d43a9834 (patch) | |
| tree | a129e5de6d0e04ad486d244e9cf6260d84edb4e6 /libdm/.exported_symbols.DM_1_02_131 | |
| parent | 12ecd95965321af194c3d446c0b5205d90994522 (diff) | |
| download | lvm2-e1048259165b09a35c45170cefbbccb4d43a9834.tar.gz | |
libdm: add dm_stats_create_regions_from_fd()
Add a call to create dmstats regions that correspond to the extents
present in a file descriptor open on a file in a local file system.
The file must reside on a file system type that correctly supports
physical extent location data in the FIEMAP ioctl.
Regions are optionally placed into a group with a user-defined alias.
File systems that do not support physical offsets in FIEMAP (btrfs
currently) are detected via fstatfs() - although attempting to map
a --filemap group on btrfs will fail anyway with the generic error
"Not on a device-mapper device" this is confusing; the file system
mount is on a device-mapper device, but btrfs' volume layer masks
this in the returned st_dev field since the returned logical file
extents may span multiple physical devices.
Diffstat (limited to 'libdm/.exported_symbols.DM_1_02_131')
| -rw-r--r-- | libdm/.exported_symbols.DM_1_02_131 | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/libdm/.exported_symbols.DM_1_02_131 b/libdm/.exported_symbols.DM_1_02_131 new file mode 100644 index 000000000..f76665272 --- /dev/null +++ b/libdm/.exported_symbols.DM_1_02_131 @@ -0,0 +1 @@ +dm_stats_create_regions_from_fd |