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| author |   Darrick J. Wong <darrick.wong@oracle.com> | 2016-10-03 09:11:14 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2016-10-03 09:11:14 -0700 |
| commit | 71be6b4942dd64bc17728f82f787be98fd8afed7 (patch) | |
| tree | c5a219e8c9d574051b01551d6e24012519213a03 /include/linux/falloc.h | |
| parent | vfs: support FS_XFLAG_COWEXTSIZE and get/set of CoW extent size hint (diff) | |
| download | linux-dev-71be6b4942dd64bc17728f82f787be98fd8afed7.tar.xz linux-dev-71be6b4942dd64bc17728f82f787be98fd8afed7.zip | |
vfs: add a FALLOC_FL_UNSHARE mode to fallocate to unshare a range of blocks
Add a new fallocate mode flag that explicitly unshares blocks on
filesystems that support such features. The new flag can only
be used with an allocate-mode fallocate call.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'include/linux/falloc.h')
| -rw-r--r-- | include/linux/falloc.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/falloc.h b/include/linux/falloc.h index 996111000a8c..7494dc67c66f 100644 --- a/include/linux/falloc.h +++ b/include/linux/falloc.h @@ -25,6 +25,7 @@ struct space_resv { FALLOC_FL_PUNCH_HOLE | \ FALLOC_FL_COLLAPSE_RANGE | \ FALLOC_FL_ZERO_RANGE | \ - FALLOC_FL_INSERT_RANGE) + FALLOC_FL_INSERT_RANGE | \ + FALLOC_FL_UNSHARE_RANGE) #endif /* _FALLOC_H_ */ |