attr.c: update a stale comment on "struct match_attr"

diff --git a/sha1_file.c b/sha1_file.c
index 1173071859dae68f72cc72efb20f816152d3eabc..1eb47f61131a81b587dc4fe80e1b175f37ba0540 100644 (file)
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -28,14 +28,6 @@
 #include "mergesort.h"
 #include "quote.h"
 
-#ifndef O_NOATIME
-#if defined(__linux__) && (defined(__i386__) || defined(__PPC__))
-#define O_NOATIME 01000000
-#else
-#define O_NOATIME 0
-#endif
-#endif
-
 #define SZ_FMT PRIuMAX
 static inline uintmax_t sz_fmt(size_t s) { return s; }
 
@@ -1611,31 +1603,31 @@ int check_sha1_signature(const unsigned char *sha1, void *map,
        return hashcmp(sha1, real_sha1) ? -1 : 0;
 }
 
-int git_open(const char *name)
+int git_open_cloexec(const char *name, int flags)
 {
-       static int sha1_file_open_flag = O_NOATIME | O_CLOEXEC;
-
-       for (;;) {
-               int fd;
-
-               errno = 0;
-               fd = open(name, O_RDONLY | sha1_file_open_flag);
-               if (fd >= 0)
-                       return fd;
+       int fd;
+       static int o_cloexec = O_CLOEXEC;
 
+       fd = open(name, flags | o_cloexec);
+       if ((o_cloexec & O_CLOEXEC) && fd < 0 && errno == EINVAL) {
                /* Try again w/o O_CLOEXEC: the kernel might not support it */
-               if ((sha1_file_open_flag & O_CLOEXEC) && errno == EINVAL) {
-                       sha1_file_open_flag &= ~O_CLOEXEC;
-                       continue;
-               }
+               o_cloexec &= ~O_CLOEXEC;
+               fd = open(name, flags | o_cloexec);
+       }
 
-               /* Might the failure be due to O_NOATIME? */
-               if (errno != ENOENT && (sha1_file_open_flag & O_NOATIME)) {
-                       sha1_file_open_flag &= ~O_NOATIME;
-                       continue;
+#if defined(F_GETFL) && defined(F_SETFL) && defined(FD_CLOEXEC)
+       {
+               static int fd_cloexec = FD_CLOEXEC;
+
+               if (!o_cloexec && 0 <= fd && fd_cloexec) {
+                       /* Opened w/o O_CLOEXEC?  try with fcntl(2) to add it */
+                       int flags = fcntl(fd, F_GETFL);
+                       if (fcntl(fd, F_SETFL, flags | fd_cloexec))
+                               fd_cloexec = 0;
                }
-               return -1;
        }
+#endif
+       return fd;
 }
 
 static int stat_sha1_file(const unsigned char *sha1, struct stat *st)