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| author | Gao Xiang <hsiangkao@linux.alibaba.com> | 2021-09-23 02:56:06 +0800 |
|---|---|---|
| committer | Gao Xiang <hsiangkao@linux.alibaba.com> | 2021-09-24 09:07:47 +0800 |
| commit | e9afc04087450a2711fcdbf49d5b2d076ec29e58 (patch) | |
| tree | 45710fcac1a74a44e1010441c4623599c47bd6ac /include | |
| parent | aa6233fee463a924b4d720e3810c32867bade7d9 (diff) | |
| download | erofs-utils-e9afc04087450a2711fcdbf49d5b2d076ec29e58.tar.gz | |
erofs-utils: introduce copy_file_range
Add copy_file_range support. Emulate it instead if libc
doesn't support it or has no emulation.
Link: https://lore.kernel.org/r/20210922185607.49909-5-hsiangkao@linux.alibaba.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/erofs/io.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/erofs/io.h b/include/erofs/io.h index 0763baf..2597bf4 100644 --- a/include/erofs/io.h +++ b/include/erofs/io.h @@ -7,6 +7,7 @@ #ifndef __EROFS_IO_H #define __EROFS_IO_H +#define _GNU_SOURCE #include <unistd.h> #include "internal.h" @@ -24,6 +25,10 @@ int dev_fsync(void); int dev_resize(erofs_blk_t nblocks); u64 dev_length(void); +int erofs_copy_file_range(int fd_in, erofs_off_t *off_in, + int fd_out, erofs_off_t *off_out, + size_t length); + static inline int blk_write(const void *buf, erofs_blk_t blkaddr, u32 nblocks) { |