diff options
| author | Rob Norris <[email protected]> | 2023-06-27 23:44:53 +1000 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2023-07-24 16:36:38 -0700 |
| commit | 5a35c68b67473a7ae0a75c4beb51c928d3e2628d (patch) | |
| tree | 3caf2148cf291c0619b2f7516507cc3358d90ac0 /include | |
| parent | f6facd242937e52ab1ad5a7fd3b6bbbb6ce08050 (diff) | |
linux: implement filesystem-side copy/clone functions
This implements the Linux VFS ops required to service the file
copy/clone APIs:
.copy_file_range (4.5+)
.clone_file_range (4.5-4.19)
.dedupe_file_range (4.5-4.19)
.remap_file_range (4.20+)
Note that dedupe_file_range() and remap_file_range(REMAP_FILE_DEDUP) are
hooked up here, but are not implemented yet.
Reviewed-by: Brian Behlendorf <[email protected]>
Reviewed-by: Kay Pedersen <[email protected]>
Signed-off-by: Rob Norris <[email protected]>
Sponsored-By: OpenDrives Inc.
Sponsored-By: Klara Inc.
Closes #15050
Diffstat (limited to 'include')
| -rw-r--r-- | include/os/linux/zfs/sys/zpl.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/os/linux/zfs/sys/zpl.h b/include/os/linux/zfs/sys/zpl.h index 2b302e9da..8b0e79afb 100644 --- a/include/os/linux/zfs/sys/zpl.h +++ b/include/os/linux/zfs/sys/zpl.h @@ -180,6 +180,20 @@ zpl_dir_emit_dots(struct file *file, zpl_dir_context_t *ctx) } #endif /* HAVE_VFS_ITERATE */ + +/* zpl_file_range.c */ + +/* handlers for file_operations of the same name */ +extern ssize_t zpl_copy_file_range(struct file *src_file, loff_t src_off, + struct file *dst_file, loff_t dst_off, size_t len, unsigned int flags); +extern loff_t zpl_remap_file_range(struct file *src_file, loff_t src_off, + struct file *dst_file, loff_t dst_off, loff_t len, unsigned int flags); +extern int zpl_clone_file_range(struct file *src_file, loff_t src_off, + struct file *dst_file, loff_t dst_off, uint64_t len); +extern int zpl_dedupe_file_range(struct file *src_file, loff_t src_off, + struct file *dst_file, loff_t dst_off, uint64_t len); + + #if defined(HAVE_INODE_TIMESTAMP_TRUNCATE) #define zpl_inode_timestamp_truncate(ts, ip) timestamp_truncate(ts, ip) #elif defined(HAVE_INODE_TIMESPEC64_TIMES) |