fs.h (622147fdad5425f6f572f84ce709303e5e0500b7) fs.h (bee9182d955227f01ff3b80c4cb6acca9bb40b11)
1#ifndef _LINUX_FS_H
2#define _LINUX_FS_H
3
4
5#include <linux/linkage.h>
6#include <linux/wait.h>
7#include <linux/kdev_t.h>
8#include <linux/dcache.h>

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1386
1387/*
1388 * Snapshotting support.
1389 */
1390
1391void __sb_end_write(struct super_block *sb, int level);
1392int __sb_start_write(struct super_block *sb, int level, bool wait);
1393
1#ifndef _LINUX_FS_H
2#define _LINUX_FS_H
3
4
5#include <linux/linkage.h>
6#include <linux/wait.h>
7#include <linux/kdev_t.h>
8#include <linux/dcache.h>

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1386
1387/*
1388 * Snapshotting support.
1389 */
1390
1391void __sb_end_write(struct super_block *sb, int level);
1392int __sb_start_write(struct super_block *sb, int level, bool wait);
1393
1394#define __sb_writers_acquired(sb, lev) \
1395 rwsem_acquire_read(&(sb)->s_writers.lock_map[(lev)-1], 0, 1, _THIS_IP_)
1396#define __sb_writers_release(sb, lev) \
1397 rwsem_release(&(sb)->s_writers.lock_map[(lev)-1], 1, _THIS_IP_)
1398
1394/**
1395 * sb_end_write - drop write access to a superblock
1396 * @sb: the super we wrote to
1397 *
1398 * Decrement number of writers to the filesystem. Wake up possible waiters
1399 * wanting to freeze the filesystem.
1400 */
1401static inline void sb_end_write(struct super_block *sb)

--- 1643 unchanged lines hidden --- 		1399/**
1400 * sb_end_write - drop write access to a superblock
1401 * @sb: the super we wrote to
1402 *
1403 * Decrement number of writers to the filesystem. Wake up possible waiters
1404 * wanting to freeze the filesystem.
1405 */
1406static inline void sb_end_write(struct super_block *sb)

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