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authorUlrich Drepper <drepper@redhat.com>2002-12-08 08:25:05 +0000
committerUlrich Drepper <drepper@redhat.com>2002-12-08 08:25:05 +0000
commitbdb04f922004ff8433591f138e40c09722836c45 (patch)
tree965b2db38d2cd7f9fb5114a10d53e3ddcc2bfad4 /nptl/pt-writev.c
parent3335502bec2220c7d1e89929d489c1a91a1d862b (diff)
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Update.
* scripts/output-format.sed: Fix bug in one of the s expressions which used / for one too many things.
Diffstat (limited to 'nptl/pt-writev.c')
-rw-r--r--nptl/pt-writev.c27
1 files changed, 18 insertions, 9 deletions
diff --git a/nptl/pt-writev.c b/nptl/pt-writev.c
index c1dda350aa..99e876c902 100644
--- a/nptl/pt-writev.c
+++ b/nptl/pt-writev.c
@@ -26,7 +26,8 @@
/* Not all versions of the kernel support the large number of records. */
#ifndef UIO_FASTIOV
-# define UIO_FASTIOV 8 /* 8 is a safe number. */
+/* 1024 is what the kernels with NPTL support use. */
+# define UIO_FASTIOV 1024
#endif
@@ -36,21 +37,29 @@ writev (fd, vector, count)
const struct iovec *vector;
int count;
{
- int oldtype;
- ssize_t result;
-
- CANCEL_ASYNC (oldtype);
+ int oldtype = CANCEL_ASYNC ();
+ ssize_t result;
#ifdef INTERNAL_SYSCALL
result = INTERNAL_SYSCALL (writev, 3, fd, vector, count);
- if (INTERNAL_SYSCALL_ERROR_P (result)
- && __builtin_expect (count > UIO_FASTIOV, 0))
-#elif defined INLINE_SYSCALL
+ if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result), 0))
+ {
+ if (count <= UIO_FASTIOV)
+ {
+ __set_errno (INTERNAL_SYSCALL_ERRNO (result));
+ result = -1;
+ }
+ else
+ result = __libc_writev (fd, vector, count);
+ }
+#else
+# if defined INLINE_SYSCALL
result = INLINE_SYSCALL (writev, 3, fd, vector, count);
if (result < 0 && errno == EINVAL
&& __builtin_expect (count > UIO_FASTIOV, 0))
-#endif
+# endif
result = __libc_writev (fd, vector, count);
+#endif
CANCEL_RESET (oldtype);