diff options
Diffstat (limited to 'source3/lib/recvfile.c')
| -rw-r--r-- | source3/lib/recvfile.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/source3/lib/recvfile.c b/source3/lib/recvfile.c index f9788fdefb..6e20933350 100644 --- a/source3/lib/recvfile.c +++ b/source3/lib/recvfile.c @@ -124,7 +124,7 @@ static ssize_t default_sys_recvfile(int fromfd, return (ssize_t)total_written; } -#if defined(HAVE_SPLICE_SYSCALL) +#if defined(HAVE_LINUX_SPLICE) /* * Try and use the Linux system call to do this. @@ -134,17 +134,33 @@ static ssize_t default_sys_recvfile(int fromfd, * from the network in the case of return != -1. */ + ssize_t sys_recvfile(int fromfd, int tofd, SMB_OFF_T offset, size_t count) { + static bool try_splice_call = true; size_t total_written = 0; if (count == 0) { return 0; } + /* + * Older Linux kernels have splice for sendfile, + * but it fails for recvfile. Ensure we only try + * this once and always fall back to the userspace + * implementation if recvfile splice fails. JRA. + */ + + if (!try_splice_call) { + return default_sys_recvfile(fromfd, + tofd, + offset, + count); + } + while (total_written < count) { ssize_t ret = splice(fromfd, NULL, @@ -155,7 +171,8 @@ ssize_t sys_recvfile(int fromfd, if (ret == -1) { if (errno != EINTR) { if (total_written == 0 && - errno == EBADF || errno == EINVAL) { + (errno == EBADF || errno == EINVAL)) { + try_splice_call = false; return default_sys_recvfile(fromfd, tofd, offset, |