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switch simple cases of fget_light to fdget

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2012-08-28 12:52:22 -04:00
parent a5b470ba06
commit 2903ff019b
44 changed files with 631 additions and 761 deletions
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33
fs/sync.c
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@@ -148,21 +148,19 @@ void emergency_sync(void)
*/
SYSCALL_DEFINE1(syncfs, int, fd)
{
struct file *file;
struct fd f = fdget(fd);
struct super_block *sb;
int ret;
int fput_needed;
file = fget_light(fd, &fput_needed);
if (!file)
if (!f.file)
return -EBADF;
sb = file->f_dentry->d_sb;
sb = f.file->f_dentry->d_sb;
down_read(&sb->s_umount);
ret = sync_filesystem(sb);
up_read(&sb->s_umount);
fput_light(file, fput_needed);
fdput(f);
return ret;
}
@@ -201,14 +199,12 @@ EXPORT_SYMBOL(vfs_fsync);
static int do_fsync(unsigned int fd, int datasync)
{
struct file *file;
struct fd f = fdget(fd);
int ret = -EBADF;
int fput_needed;
file = fget_light(fd, &fput_needed);
if (file) {
ret = vfs_fsync(file, datasync);
fput_light(file, fput_needed);
if (f.file) {
ret = vfs_fsync(f.file, datasync);
fdput(f);
}
return ret;
}
@@ -291,10 +287,9 @@ SYSCALL_DEFINE(sync_file_range)(int fd, loff_t offset, loff_t nbytes,
unsigned int flags)
{
int ret;
struct file *file;
struct fd f;
struct address_space *mapping;
loff_t endbyte; /* inclusive */
int fput_needed;
umode_t i_mode;
ret = -EINVAL;
@@ -333,17 +328,17 @@ SYSCALL_DEFINE(sync_file_range)(int fd, loff_t offset, loff_t nbytes,
endbyte--; /* inclusive */
ret = -EBADF;
file = fget_light(fd, &fput_needed);
if (!file)
f = fdget(fd);
if (!f.file)
goto out;
i_mode = file->f_path.dentry->d_inode->i_mode;
i_mode = f.file->f_path.dentry->d_inode->i_mode;
ret = -ESPIPE;
if (!S_ISREG(i_mode) && !S_ISBLK(i_mode) && !S_ISDIR(i_mode) &&
!S_ISLNK(i_mode))
goto out_put;
mapping = file->f_mapping;
mapping = f.file->f_mapping;
if (!mapping) {
ret = -EINVAL;
goto out_put;
@@ -366,7 +361,7 @@ SYSCALL_DEFINE(sync_file_range)(int fd, loff_t offset, loff_t nbytes,
ret = filemap_fdatawait_range(mapping, offset, endbyte);
out_put:
fput_light(file, fput_needed);
fdput(f);
out:
return ret;
}