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| author | Fabian Frederick <fabf@skynet.be> | 2014-07-15 21:17:17 +0200 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2014-09-17 22:37:35 +0200 |
| commit | d447d0da44cd7d396277d1d8f46b418c721fbc02 (patch) | |
| tree | 68404e7849867e3588e5cf6a0905ee0ab0f16a98 | |
| parent | Btrfs: use BUG_ON (diff) | |
| download | linux-d447d0da44cd7d396277d1d8f46b418c721fbc02.tar.xz linux-d447d0da44cd7d396277d1d8f46b418c721fbc02.zip | |
Btrfs: fix sparse warning
Fix the following sparse warning:
fs/btrfs/send.c:518:51: warning: incorrect type in argument 2 (different address spaces)
fs/btrfs/send.c:518:51: expected char const [noderef] <asn:1>*<noident>
fs/btrfs/send.c:518:51: got char *
We can safely use (const char __user *) with set_fs(KERNEL_DS)
__force added to avoid sparse-all warning:
fs/btrfs/send.c:518:40: warning: cast adds address space to expression (<asn:1>)
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Reviewed-by: Zach Brown <zab@zabbo.net>
Signed-off-by: Chris Mason <clm@fb.com>
| -rw-r--r-- | fs/btrfs/send.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c index 6528aa662181..b67e12eb7ca9 100644 --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -515,7 +515,8 @@ static int write_buf(struct file *filp, const void *buf, u32 len, loff_t *off) set_fs(KERNEL_DS); while (pos < len) { - ret = vfs_write(filp, (char *)buf + pos, len - pos, off); + ret = vfs_write(filp, (__force const char __user *)buf + pos, + len - pos, off); /* TODO handle that correctly */ /*if (ret == -ERESTARTSYS) { continue; |