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authorAl Viro <viro@zeniv.linux.org.uk>2012-04-21 18:42:19 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2012-05-29 23:28:30 -0400
commit545ec2c7945bf7d22d0779e7dc9bf16f7dd9ae34 (patch)
tree3f9b528d8e5ed427e5a811c1e99d5b0768e2ef33
parent7449af1e8b795abf4ef829ac507861f34dca30b4 (diff)
switch fcntl to fget_raw_light/fput_light
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r--fs/fcntl.c42
1 files changed, 17 insertions, 25 deletions
diff --git a/fs/fcntl.c b/fs/fcntl.c
index d078b75572a7..81b70e665bf0 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -442,28 +442,24 @@ static int check_fcntl_cmd(unsigned cmd)
SYSCALL_DEFINE3(fcntl, unsigned int, fd, unsigned int, cmd, unsigned long, arg)
{
struct file *filp;
+ int fput_needed;
long err = -EBADF;
- filp = fget_raw(fd);
+ filp = fget_raw_light(fd, &fput_needed);
if (!filp)
goto out;
if (unlikely(filp->f_mode & FMODE_PATH)) {
- if (!check_fcntl_cmd(cmd)) {
- fput(filp);
- goto out;
- }
+ if (!check_fcntl_cmd(cmd))
+ goto out1;
}
err = security_file_fcntl(filp, cmd, arg);
- if (err) {
- fput(filp);
- return err;
- }
+ if (!err)
+ err = do_fcntl(fd, cmd, arg, filp);
- err = do_fcntl(fd, cmd, arg, filp);
-
- fput(filp);
+out1:
+ fput_light(filp, fput_needed);
out:
return err;
}
@@ -473,26 +469,21 @@ SYSCALL_DEFINE3(fcntl64, unsigned int, fd, unsigned int, cmd,
unsigned long, arg)
{
struct file * filp;
- long err;
+ long err = -EBADF;
+ int fput_needed;
- err = -EBADF;
- filp = fget_raw(fd);
+ filp = fget_raw_light(fd, &fput_needed);
if (!filp)
goto out;
if (unlikely(filp->f_mode & FMODE_PATH)) {
- if (!check_fcntl_cmd(cmd)) {
- fput(filp);
- goto out;
- }
+ if (!check_fcntl_cmd(cmd))
+ goto out1;
}
err = security_file_fcntl(filp, cmd, arg);
- if (err) {
- fput(filp);
- return err;
- }
- err = -EBADF;
+ if (err)
+ goto out1;
switch (cmd) {
case F_GETLK64:
@@ -507,7 +498,8 @@ SYSCALL_DEFINE3(fcntl64, unsigned int, fd, unsigned int, cmd,
err = do_fcntl(fd, cmd, arg, filp);
break;
}
- fput(filp);
+out1:
+ fput_light(filp, fput_needed);
out:
return err;
}