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fat: switch to ->iterate_shared()

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... and make that weird ioctl lock directory only shared.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2016-04-30 23:26:25 -04:00
parent d375570fa8
commit 98d4b8d8f0
1 changed files with 3 additions and 3 deletions
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6
fs/fat/dir.c
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@ -769,7 +769,7 @@ static int fat_ioctl_readdir(struct inode *inode, struct file *file,
buf.dirent = dirent;
buf.result = 0;
inode_lock(inode);
inode_lock_shared(inode);
buf.ctx.pos = file->f_pos;
ret = -ENOENT;
if (!IS_DEADDIR(inode)) {
@ -777,7 +777,7 @@ static int fat_ioctl_readdir(struct inode *inode, struct file *file,
short_only, both ? &buf : NULL);
file->f_pos = buf.ctx.pos;
}
inode_unlock(inode);
inode_unlock_shared(inode);
if (ret >= 0)
ret = buf.result;
return ret;
@ -861,7 +861,7 @@ static long fat_compat_dir_ioctl(struct file *filp, unsigned cmd,
const struct file_operations fat_dir_operations = {
.llseek = generic_file_llseek,
.read = generic_read_dir,
.iterate = fat_readdir,
.iterate_shared = fat_readdir,
.unlocked_ioctl = fat_dir_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = fat_compat_dir_ioctl,