| Message ID | 1452902212-27352-1-git-send-email-kamal@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/scripts/recordmcount.c b/scripts/recordmcount.c index e00bcd1..fd42629 100644 --- a/scripts/recordmcount.c +++ b/scripts/recordmcount.c @@ -211,6 +211,20 @@ static void *mmap_file(char const *fname) addr = umalloc(sb.st_size); uread(fd_map, addr, sb.st_size); } + if (sb.st_nlink != 1) { + /* file is hard-linked, break the hard link */ + close(fd_map); + if (unlink(fname) < 0) { + perror(fname); + fail_file(); + } + fd_map = open(fname, O_RDWR | O_CREAT, sb.st_mode); + if (fd_map < 0) { + perror(fname); + fail_file(); + } + uwrite(fd_map, addr, sb.st_size); + } return addr; }
This is a note to let you know that I have just added a patch titled scripts: recordmcount: break hardlinks to the linux-4.2.y-queue branch of the 4.2.y-ckt extended stable tree which can be found at: http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-4.2.y-queue This patch is scheduled to be released in version 4.2.8-ckt2. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 4.2.y-ckt tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Kamal ---8<------------------------------------------------------------ From 0ff9236470521a7092f105ad76df250ce9af9ab0 Mon Sep 17 00:00:00 2001 From: Russell King <rmk+kernel@arm.linux.org.uk> Date: Fri, 11 Dec 2015 12:09:03 +0000 Subject: scripts: recordmcount: break hardlinks commit dd39a26538e37f6c6131e829a4a510787e43c783 upstream. recordmcount edits the file in-place, which can cause problems when using ccache in hardlink mode. Arrange for recordmcount to break a hardlinked object. Link: http://lkml.kernel.org/r/E1a7MVT-0000et-62@rmk-PC.arm.linux.org.uk Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- scripts/recordmcount.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) -- 1.9.1