diff options
| author | Theodore Ts'o <tytso@mit.edu> | 2015-01-22 12:13:14 -0500 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-05-27 19:39:49 +0200 |
| commit | 8351b33f481e6afc8e278ed97f068ed8a4873ea7 (patch) | |
| tree | ee116282462851108524a90047267201ccb90017 /include/uapi/linux/fiemap.h | |
| parent | 964b9b3862dccbfbba546e4e09cb33a8361ca252 (diff) | |
uapi: add new system call ABI codepoints for ext4 3.18 backport
note: this doesn't guarantee that functionality provided by
FALLOC_FL_COLLAPSE_RANGE, FALLOC_FL_ZERO_RANGE, and FIEMAP_FLAG_CACHE
to necessarily _work_; it only allows ext4 from 3.18 to *compile*.
Fortunately, these are exotic bits of functionality that most people
never use.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'include/uapi/linux/fiemap.h')
| -rw-r--r-- | include/uapi/linux/fiemap.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/fiemap.h b/include/uapi/linux/fiemap.h index d830747f5..0c51d617d 100644 --- a/include/uapi/linux/fiemap.h +++ b/include/uapi/linux/fiemap.h @@ -40,6 +40,7 @@ struct fiemap { #define FIEMAP_FLAG_SYNC 0x00000001 /* sync file data before map */ #define FIEMAP_FLAG_XATTR 0x00000002 /* map extended attribute tree */ +#define FIEMAP_FLAG_CACHE 0x00000004 /* request caching of the extents */ #define FIEMAP_FLAGS_COMPAT (FIEMAP_FLAG_SYNC | FIEMAP_FLAG_XATTR) |