@@ -398,9 +398,9 @@ static ssize_t my_pread(int fd, void *buf, size_t count, off_t offset)
}
#endif /* !defined HAVE_PREAD64 && !defined HAVE_PREAD */
-static errcode_t copy_file_range(ext2_filsys fs, int fd, ext2_file_t e2_file,
- off_t start, off_t end, char *buf,
- char *zerobuf)
+static errcode_t _copy_file_range(ext2_filsys fs, int fd, ext2_file_t e2_file,
+ off_t start, off_t end, char *buf,
+ char *zerobuf)
{
off_t off, bpos;
ssize_t got, blen;
@@ -472,8 +472,8 @@ static errcode_t try_lseek_copy(ext2_filsys fs, int fd, struct stat *statbuf,
data_blk = data & ~(fs->blocksize - 1);
hole_blk = (hole + (fs->blocksize - 1)) & ~(fs->blocksize - 1);
- err = copy_file_range(fs, fd, e2_file, data_blk, hole_blk, buf,
- zerobuf);
+ err = _copy_file_range(fs, fd, e2_file, data_blk, hole_blk, buf,
+ zerobuf);
if (err)
return err;
@@ -523,9 +523,9 @@ static errcode_t try_fiemap_copy(ext2_filsys fs, int fd, ext2_file_t e2_file,
goto out;
for (i = 0, ext = ext_buf; i < fiemap_buf->fm_mapped_extents;
i++, ext++) {
- err = copy_file_range(fs, fd, e2_file, ext->fe_logical,
- ext->fe_logical + ext->fe_length,
- buf, zerobuf);
+ err = _copy_file_range(fs, fd, e2_file, ext->fe_logical,
+ ext->fe_logical + ext->fe_length,
+ buf, zerobuf);
if (err)
goto out;
}
@@ -576,8 +576,8 @@ static errcode_t copy_file(ext2_filsys fs, int fd, struct stat *statbuf,
goto out;
#endif
- err = copy_file_range(fs, fd, e2_file, 0, statbuf->st_size, buf,
- zerobuf);
+ err = _copy_file_range(fs, fd, e2_file, 0, statbuf->st_size, buf,
+ zerobuf);
out:
ext2fs_free_mem(&zerobuf);
ext2fs_free_mem(&buf);
As of 2.27, glibc will have a copy_file_range library call to wrap the new copy_file_range system call. This conflicts with the function in misc/create_inode.c, which this patch renames _copy_file_range. Full disclosure: I found this when building e2fsprogs for RISC-V with a glibc-2.27 prerelease, so it's very possible I screwed something up here. Here's the relevant glibc commit: commit bad7a0c81f501fbbcc79af9eaa4b8254441c4a1f Author: Florian Weimer <fweimer@redhat.com> Date: Fri Dec 22 10:55:40 2017 +0100 copy_file_range: New function to copy file data The semantics are based on the Linux system call, but a very close emulation in user space is provided. ... diff --git a/posix/unistd.h b/posix/unistd.h index 32b0f4898fd2..65317c79fd39 100644 --- a/posix/unistd.h +++ b/posix/unistd.h @@ -1105,7 +1105,12 @@ extern int lockf64 (int __fd, int __cmd, __off64_t __len) __wur; do __result = (long int) (expression); \ while (__result == -1L && errno == EINTR); \ __result; })) -#endif + +/* Copy LENGTH bytes from INFD to OUTFD. */ +ssize_t copy_file_range (int __infd, __off64_t *__pinoff, + int __outfd, __off64_t *__poutoff, + size_t __length, unsigned int __flags); +#endif /* __USE_GNU */ Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com> --- misc/create_inode.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-)