diff options
Diffstat (limited to 'util/nvmutil/nvmutil.c')
| -rw-r--r-- | util/nvmutil/nvmutil.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/util/nvmutil/nvmutil.c b/util/nvmutil/nvmutil.c index 62c5ee2a..85b6d4ed 100644 --- a/util/nvmutil/nvmutil.c +++ b/util/nvmutil/nvmutil.c @@ -1681,7 +1681,7 @@ prw(int fd, void *mem, size_t nrw, ssize_t r; int saved_errno; int flags; - int positional_rw = 0; + int positional_rw; if (mem == NULL) goto err_prw; @@ -1695,16 +1695,19 @@ prw(int fd, void *mem, size_t nrw, r = -1; -try_rw_again: - - if (rw_type == IO_WRITE) - r = write(fd, mem, nrw); - else if (rw_type == IO_READ) - r = read(fd, mem, nrw); + if (rw_type >= IO_PREAD) + positional_rw = 1; /* pread/pwrite */ else - positional_rw = 1; + positional_rw = 0; /* read/write */ + +try_rw_again: if (!positional_rw) { + if (rw_type == IO_WRITE) + r = write(fd, mem, nrw); + else if (rw_type == IO_READ) + r = read(fd, mem, nrw); + if (r == -1 && (errno == EINTR || errno == err_eagain(loop_eagain))) goto try_rw_again; |