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authorAl Viro <viro@zeniv.linux.org.uk>2012-08-28 20:52:22 +0400
committerAl Viro <viro@zeniv.linux.org.uk>2012-09-27 06:20:08 +0400
commit2903ff019b346ab8d36ebbf54853c3aaf6590608 (patch)
tree962d94054765bb37bc00e977c3036e65c5fd91fe /fs/open.c
parenta5b470ba06aa3f96999ede5feba178df6bdb134a (diff)
downloadlinux-2903ff019b346ab8d36ebbf54853c3aaf6590608.tar.xz
switch simple cases of fget_light to fdget
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/open.c')
-rw-r--r--fs/open.c64
1 files changed, 30 insertions, 34 deletions
diff --git a/fs/open.c b/fs/open.c
index 3c741eae6b99..85603262d8db 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -134,25 +134,25 @@ static long do_sys_ftruncate(unsigned int fd, loff_t length, int small)
{
struct inode *inode;
struct dentry *dentry;
- struct file *file;
- int error, fput_needed;
+ struct fd f;
+ int error;
error = -EINVAL;
if (length < 0)
goto out;
error = -EBADF;
- file = fget_light(fd, &fput_needed);
- if (!file)
+ f = fdget(fd);
+ if (!f.file)
goto out;
/* explicitly opened as large or we are on 64-bit box */
- if (file->f_flags & O_LARGEFILE)
+ if (f.file->f_flags & O_LARGEFILE)
small = 0;
- dentry = file->f_path.dentry;
+ dentry = f.file->f_path.dentry;
inode = dentry->d_inode;
error = -EINVAL;
- if (!S_ISREG(inode->i_mode) || !(file->f_mode & FMODE_WRITE))
+ if (!S_ISREG(inode->i_mode) || !(f.file->f_mode & FMODE_WRITE))
goto out_putf;
error = -EINVAL;
@@ -165,14 +165,14 @@ static long do_sys_ftruncate(unsigned int fd, loff_t length, int small)
goto out_putf;
sb_start_write(inode->i_sb);
- error = locks_verify_truncate(inode, file, length);
+ error = locks_verify_truncate(inode, f.file, length);
if (!error)
- error = security_path_truncate(&file->f_path);
+ error = security_path_truncate(&f.file->f_path);
if (!error)
- error = do_truncate(dentry, length, ATTR_MTIME|ATTR_CTIME, file);
+ error = do_truncate(dentry, length, ATTR_MTIME|ATTR_CTIME, f.file);
sb_end_write(inode->i_sb);
out_putf:
- fput_light(file, fput_needed);
+ fdput(f);
out:
return error;
}
@@ -276,15 +276,13 @@ int do_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
SYSCALL_DEFINE(fallocate)(int fd, int mode, loff_t offset, loff_t len)
{
- struct file *file;
- int error = -EBADF, fput_needed;
+ struct fd f = fdget(fd);
+ int error = -EBADF;
- file = fget_light(fd, &fput_needed);
- if (file) {
- error = do_fallocate(file, mode, offset, len);
- fput_light(file, fput_needed);
+ if (f.file) {
+ error = do_fallocate(f.file, mode, offset, len);
+ fdput(f);
}
-
return error;
}
@@ -400,16 +398,15 @@ out:
SYSCALL_DEFINE1(fchdir, unsigned int, fd)
{
- struct file *file;
+ struct fd f = fdget_raw(fd);
struct inode *inode;
- int error, fput_needed;
+ int error = -EBADF;
error = -EBADF;
- file = fget_raw_light(fd, &fput_needed);
- if (!file)
+ if (!f.file)
goto out;
- inode = file->f_path.dentry->d_inode;
+ inode = f.file->f_path.dentry->d_inode;
error = -ENOTDIR;
if (!S_ISDIR(inode->i_mode))
@@ -417,9 +414,9 @@ SYSCALL_DEFINE1(fchdir, unsigned int, fd)
error = inode_permission(inode, MAY_EXEC | MAY_CHDIR);
if (!error)
- set_fs_pwd(current->fs, &file->f_path);
+ set_fs_pwd(current->fs, &f.file->f_path);
out_putf:
- fput_light(file, fput_needed);
+ fdput(f);
out:
return error;
}
@@ -582,21 +579,20 @@ SYSCALL_DEFINE3(lchown, const char __user *, filename, uid_t, user, gid_t, group
SYSCALL_DEFINE3(fchown, unsigned int, fd, uid_t, user, gid_t, group)
{
- struct file *file;
- int error = -EBADF, fput_needed;
+ struct fd f = fdget(fd);
+ int error = -EBADF;
- file = fget_light(fd, &fput_needed);
- if (!file)
+ if (!f.file)
goto out;
- error = mnt_want_write_file(file);
+ error = mnt_want_write_file(f.file);
if (error)
goto out_fput;
- audit_inode(NULL, file->f_path.dentry);
- error = chown_common(&file->f_path, user, group);
- mnt_drop_write_file(file);
+ audit_inode(NULL, f.file->f_path.dentry);
+ error = chown_common(&f.file->f_path, user, group);
+ mnt_drop_write_file(f.file);
out_fput:
- fput_light(file, fput_needed);
+ fdput(f);
out:
return error;
}