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author | Thomas Gleixner <tglx@linutronix.de> | 2020-06-11 21:02:46 +0300 |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2020-06-11 21:02:46 +0300 |
commit | 37d1a04b13a6d2fec91a6813fc034947a27db034 (patch) | |
tree | c6a8d7d0df96a6eb1ddb53a12885761cb72e0e92 /lib/iov_iter.c | |
parent | 37f8173dd84936ea78000ed1cad24f8b18d48ebb (diff) | |
parent | 97a9474aeb789183a1d0712e66a4283860279ac9 (diff) | |
download | linux-37d1a04b13a6d2fec91a6813fc034947a27db034.tar.xz |
Rebase locking/kcsan to locking/urgent
Merge the state of the locking kcsan branch before the read/write_once()
and the atomics modifications got merged.
Squash the fallout of the rebase on top of the read/write once and atomic
fallback work into the merge. The history of the original branch is
preserved in tag locking-kcsan-2020-06-02.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'lib/iov_iter.c')
-rw-r--r-- | lib/iov_iter.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/lib/iov_iter.c b/lib/iov_iter.c index 51595bf3af85..bf538c2bec77 100644 --- a/lib/iov_iter.c +++ b/lib/iov_iter.c @@ -8,6 +8,7 @@ #include <linux/splice.h> #include <net/checksum.h> #include <linux/scatterlist.h> +#include <linux/instrumented.h> #define PIPE_PARANOIA /* for now */ @@ -138,7 +139,7 @@ static int copyout(void __user *to, const void *from, size_t n) { if (access_ok(to, n)) { - kasan_check_read(from, n); + instrument_copy_to_user(to, from, n); n = raw_copy_to_user(to, from, n); } return n; @@ -147,7 +148,7 @@ static int copyout(void __user *to, const void *from, size_t n) static int copyin(void *to, const void __user *from, size_t n) { if (access_ok(from, n)) { - kasan_check_write(to, n); + instrument_copy_from_user(to, from, n); n = raw_copy_from_user(to, from, n); } return n; @@ -639,7 +640,7 @@ EXPORT_SYMBOL(_copy_to_iter); static int copyout_mcsafe(void __user *to, const void *from, size_t n) { if (access_ok(to, n)) { - kasan_check_read(from, n); + instrument_copy_to_user(to, from, n); n = copy_to_user_mcsafe((__force void *) to, from, n); } return n; |