[PATCH resend] server: implement file random access hint on OS X
Luke Deller
luke at deller.id.au
Fri Jan 28 05:08:24 CST 2022
Disable read ahead for files opened with FILE_RANDOM_ACCESS hint on
Mac OS X and FreeBSD.
Signed-off-by: Luke Deller <luke at deller.id.au>
---
server/fd.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/server/fd.c b/server/fd.c
index c9a21186722..ebcbd4266cc 100644
--- a/server/fd.c
+++ b/server/fd.c
@@ -2054,6 +2054,13 @@ struct fd *open_fd( struct fd *root, const char *name, struct unicode_str nt_nam
posix_fadvise( fd->unix_fd, 0, 0, POSIX_FADV_RANDOM );
break;
}
+#elif defined F_RDAHEAD /* Mac OS X, FreeBSD */
+ switch (options & (FILE_SEQUENTIAL_ONLY | FILE_RANDOM_ACCESS))
+ {
+ case FILE_RANDOM_ACCESS:
+ fcntl( fd->unix_fd, F_RDAHEAD, 0 );
+ break;
+ }
#endif
if (root_fd != -1) fchdir( server_dir_fd ); /* go back to the server dir */
--
2.32.0 (Apple Git-132)
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