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| author |   Namjae Jeon <namjae.jeon@samsung.com> | 2015-03-25 15:07:05 +1100 |
|---|---|---|
| committer |   Dave Chinner <david@fromorbit.com> | 2015-03-25 15:07:05 +1100 |
| commit | dd46c787788d5bf5b974729d43e4c405814a4c7d (patch) | |
| tree | 67ae36b5a9cbbec7b71995417f9350999dca6b9c /include/linux/falloc.h | |
| parent | xfs: remove deprecated mount options (diff) | |
| download | wireguard-linux-dd46c787788d5bf5b974729d43e4c405814a4c7d.tar.xz wireguard-linux-dd46c787788d5bf5b974729d43e4c405814a4c7d.zip | |
fs: Add support FALLOC_FL_INSERT_RANGE for fallocate
FALLOC_FL_INSERT_RANGE command is the opposite command of
FALLOC_FL_COLLAPSE_RANGE that is needed for someone who wants to add
some data in the middle of file.
FALLOC_FL_INSERT_RANGE will create space for writing new data within
a file after shifting extents to right as given length. This command
also has same limitations as FALLOC_FL_COLLAPSE_RANGE in that
operations need to be filesystem block boundary aligned and cannot
cross the current EOF.
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'include/linux/falloc.h')
| -rw-r--r-- | include/linux/falloc.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/falloc.h b/include/linux/falloc.h index 31591686ac2d..996111000a8c 100644 --- a/include/linux/falloc.h +++ b/include/linux/falloc.h @@ -21,4 +21,10 @@ struct space_resv { #define FS_IOC_RESVSP _IOW('X', 40, struct space_resv) #define FS_IOC_RESVSP64 _IOW('X', 42, struct space_resv) +#define FALLOC_FL_SUPPORTED_MASK (FALLOC_FL_KEEP_SIZE | \ + FALLOC_FL_PUNCH_HOLE | \ + FALLOC_FL_COLLAPSE_RANGE | \ + FALLOC_FL_ZERO_RANGE | \ + FALLOC_FL_INSERT_RANGE) + #endif /* _FALLOC_H_ */ |