*
* http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
*/
-
#include "xfs.h"
-
-#include "xfs_inum.h"
+#include "xfs_bit.h"
#include "xfs_log.h"
#include "xfs_clnt.h"
+#include "xfs_inum.h"
#include "xfs_trans.h"
#include "xfs_sb.h"
+#include "xfs_ag.h"
#include "xfs_dir.h"
#include "xfs_dir2.h"
#include "xfs_alloc.h"
#include "xfs_dmapi.h"
#include "xfs_quota.h"
#include "xfs_mount.h"
-#include "xfs_alloc_btree.h"
#include "xfs_bmap_btree.h"
+#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_btree.h"
-#include "xfs_ialloc.h"
-#include "xfs_attr_sf.h"
#include "xfs_dir_sf.h"
#include "xfs_dir2_sf.h"
+#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
#include "xfs_bmap.h"
-#include "xfs_bit.h"
#include "xfs_rtalloc.h"
#include "xfs_error.h"
#include "xfs_itable.h"
#include <linux/namei.h>
#include <linux/init.h>
#include <linux/mount.h>
+#include <linux/mempool.h>
#include <linux/writeback.h>
+#include <linux/kthread.h>
STATIC struct quotactl_ops linvfs_qops;
STATIC struct super_operations linvfs_sops;
-STATIC kmem_zone_t *linvfs_inode_zone;
+STATIC kmem_zone_t *xfs_vnode_zone;
+STATIC kmem_zone_t *xfs_ioend_zone;
+mempool_t *xfs_ioend_pool;
STATIC struct xfs_mount_args *
xfs_args_allocate(
xfs_set_inodeops(
struct inode *inode)
{
- vnode_t *vp = LINVFS_GET_VP(inode);
-
- if (vp->v_type == VNON) {
- vn_mark_bad(vp);
- } else if (S_ISREG(inode->i_mode)) {
+ switch (inode->i_mode & S_IFMT) {
+ case S_IFREG:
inode->i_op = &linvfs_file_inode_operations;
inode->i_fop = &linvfs_file_operations;
inode->i_mapping->a_ops = &linvfs_aops;
- } else if (S_ISDIR(inode->i_mode)) {
+ break;
+ case S_IFDIR:
inode->i_op = &linvfs_dir_inode_operations;
inode->i_fop = &linvfs_dir_operations;
- } else if (S_ISLNK(inode->i_mode)) {
+ break;
+ case S_IFLNK:
inode->i_op = &linvfs_symlink_inode_operations;
if (inode->i_blocks)
inode->i_mapping->a_ops = &linvfs_aops;
- } else {
+ break;
+ default:
inode->i_op = &linvfs_file_inode_operations;
init_special_inode(inode, inode->i_mode, inode->i_rdev);
+ break;
}
}
{
struct inode *inode = LINVFS_GET_IP(vp);
- inode->i_mode = (ip->i_d.di_mode & MODEMASK) | VTTOIF(vp->v_type);
+ inode->i_mode = ip->i_d.di_mode;
inode->i_nlink = ip->i_d.di_nlink;
inode->i_uid = ip->i_d.di_uid;
inode->i_gid = ip->i_d.di_gid;
- if (((1 << vp->v_type) & ((1<<VBLK) | (1<<VCHR))) == 0) {
+
+ switch (inode->i_mode & S_IFMT) {
+ case S_IFBLK:
+ case S_IFCHR:
+ inode->i_rdev =
+ MKDEV(sysv_major(ip->i_df.if_u2.if_rdev) & 0x1ff,
+ sysv_minor(ip->i_df.if_u2.if_rdev));
+ break;
+ default:
inode->i_rdev = 0;
- } else {
- xfs_dev_t dev = ip->i_df.if_u2.if_rdev;
- inode->i_rdev = MKDEV(sysv_major(dev) & 0x1ff, sysv_minor(dev));
+ break;
}
- inode->i_blksize = PAGE_CACHE_SIZE;
+
+ inode->i_blksize = xfs_preferred_iosize(mp);
inode->i_generation = ip->i_d.di_gen;
i_size_write(inode, ip->i_d.di_size);
inode->i_blocks =
* finish our work.
*/
if (ip->i_d.di_mode != 0 && unlock && (inode->i_state & I_NEW)) {
- vp->v_type = IFTOVT(ip->i_d.di_mode);
xfs_revalidate_inode(XFS_BHVTOM(bdp), vp, ip);
xfs_set_inodeops(inode);
close_bdev_excl(bdev);
}
+/*
+ * Try to write out the superblock using barriers.
+ */
+STATIC int
+xfs_barrier_test(
+ xfs_mount_t *mp)
+{
+ xfs_buf_t *sbp = xfs_getsb(mp, 0);
+ int error;
+
+ XFS_BUF_UNDONE(sbp);
+ XFS_BUF_UNREAD(sbp);
+ XFS_BUF_UNDELAYWRITE(sbp);
+ XFS_BUF_WRITE(sbp);
+ XFS_BUF_UNASYNC(sbp);
+ XFS_BUF_ORDERED(sbp);
+
+ xfsbdstrat(mp, sbp);
+ error = xfs_iowait(sbp);
+
+ /*
+ * Clear all the flags we set and possible error state in the
+ * buffer. We only did the write to try out whether barriers
+ * worked and shouldn't leave any traces in the superblock
+ * buffer.
+ */
+ XFS_BUF_DONE(sbp);
+ XFS_BUF_ERROR(sbp, 0);
+ XFS_BUF_UNORDERED(sbp);
+
+ xfs_buf_relse(sbp);
+ return error;
+}
+
+void
+xfs_mountfs_check_barriers(xfs_mount_t *mp)
+{
+ int error;
+
+ if (mp->m_logdev_targp != mp->m_ddev_targp) {
+ xfs_fs_cmn_err(CE_NOTE, mp,
+ "Disabling barriers, not supported with external log device");
+ mp->m_flags &= ~XFS_MOUNT_BARRIER;
+ }
+
+ if (mp->m_ddev_targp->pbr_bdev->bd_disk->queue->ordered ==
+ QUEUE_ORDERED_NONE) {
+ xfs_fs_cmn_err(CE_NOTE, mp,
+ "Disabling barriers, not supported by the underlying device");
+ mp->m_flags &= ~XFS_MOUNT_BARRIER;
+ }
+
+ error = xfs_barrier_test(mp);
+ if (error) {
+ xfs_fs_cmn_err(CE_NOTE, mp,
+ "Disabling barriers, trial barrier write failed");
+ mp->m_flags &= ~XFS_MOUNT_BARRIER;
+ }
+}
+
+void
+xfs_blkdev_issue_flush(
+ xfs_buftarg_t *buftarg)
+{
+ blkdev_issue_flush(buftarg->pbr_bdev, NULL);
+}
STATIC struct inode *
linvfs_alloc_inode(
{
vnode_t *vp;
- vp = (vnode_t *)kmem_cache_alloc(linvfs_inode_zone,
- kmem_flags_convert(KM_SLEEP));
+ vp = kmem_cache_alloc(xfs_vnode_zone, kmem_flags_convert(KM_SLEEP));
if (!vp)
return NULL;
return LINVFS_GET_IP(vp);
linvfs_destroy_inode(
struct inode *inode)
{
- kmem_cache_free(linvfs_inode_zone, LINVFS_GET_VP(inode));
+ kmem_zone_free(xfs_vnode_zone, LINVFS_GET_VP(inode));
}
STATIC void
-init_once(
+linvfs_inode_init_once(
void *data,
kmem_cache_t *cachep,
unsigned long flags)
}
STATIC int
-init_inodecache( void )
+linvfs_init_zones(void)
{
- linvfs_inode_zone = kmem_cache_create("linvfs_icache",
+ xfs_vnode_zone = kmem_cache_create("xfs_vnode",
sizeof(vnode_t), 0, SLAB_RECLAIM_ACCOUNT,
- init_once, NULL);
- if (linvfs_inode_zone == NULL)
- return -ENOMEM;
+ linvfs_inode_init_once, NULL);
+ if (!xfs_vnode_zone)
+ goto out;
+
+ xfs_ioend_zone = kmem_zone_init(sizeof(xfs_ioend_t), "xfs_ioend");
+ if (!xfs_ioend_zone)
+ goto out_destroy_vnode_zone;
+
+ xfs_ioend_pool = mempool_create(4 * MAX_BUF_PER_PAGE,
+ mempool_alloc_slab, mempool_free_slab,
+ xfs_ioend_zone);
+ if (!xfs_ioend_pool)
+ goto out_free_ioend_zone;
+
return 0;
+
+
+ out_free_ioend_zone:
+ kmem_zone_destroy(xfs_ioend_zone);
+ out_destroy_vnode_zone:
+ kmem_zone_destroy(xfs_vnode_zone);
+ out:
+ return -ENOMEM;
}
STATIC void
-destroy_inodecache( void )
+linvfs_destroy_zones(void)
{
- if (kmem_cache_destroy(linvfs_inode_zone))
- printk(KERN_WARNING "%s: cache still in use!\n", __FUNCTION__);
+ mempool_destroy(xfs_ioend_pool);
+ kmem_zone_destroy(xfs_vnode_zone);
+ kmem_zone_destroy(xfs_ioend_zone);
}
/*
struct inode *inode)
{
vnode_t *vp = LINVFS_GET_VP(inode);
+ int error, cache;
- if (vp) {
- vn_rele(vp);
- vn_trace_entry(vp, __FUNCTION__, (inst_t *)__return_address);
- /*
- * Do all our cleanup, and remove this vnode.
- */
- vn_remove(vp);
+ vn_trace_entry(vp, "clear_inode", (inst_t *)__return_address);
+
+ XFS_STATS_INC(vn_rele);
+ XFS_STATS_INC(vn_remove);
+ XFS_STATS_INC(vn_reclaim);
+ XFS_STATS_DEC(vn_active);
+
+ /*
+ * This can happen because xfs_iget_core calls xfs_idestroy if we
+ * find an inode with di_mode == 0 but without IGET_CREATE set.
+ */
+ if (vp->v_fbhv)
+ VOP_INACTIVE(vp, NULL, cache);
+
+ VN_LOCK(vp);
+ vp->v_flag &= ~VMODIFIED;
+ VN_UNLOCK(vp, 0);
+
+ if (vp->v_fbhv) {
+ VOP_RECLAIM(vp, error);
+ if (error)
+ panic("vn_purge: cannot reclaim");
}
-}
+ ASSERT(vp->v_fbhv == NULL);
+
+#ifdef XFS_VNODE_TRACE
+ ktrace_free(vp->v_trace);
+#endif
+}
/*
* Enqueue a work item to be picked up by the vfs xfssyncd thread.
igrab(inode);
xfs_syncd_queue_work(vfs, inode, xfs_flush_inode_work);
- delay(HZ/2);
+ delay(msecs_to_jiffies(500));
}
/*
igrab(inode);
xfs_syncd_queue_work(vfs, inode, xfs_flush_device_work);
- delay(HZ/2);
+ delay(msecs_to_jiffies(500));
xfs_log_force(ip->i_mount, (xfs_lsn_t)0, XFS_LOG_FORCE|XFS_LOG_SYNC);
}
{
long timeleft;
vfs_t *vfsp = (vfs_t *) arg;
- struct list_head tmp;
struct vfs_sync_work *work, *n;
+ LIST_HEAD (tmp);
- daemonize("xfssyncd");
-
- vfsp->vfs_sync_work.w_vfs = vfsp;
- vfsp->vfs_sync_work.w_syncer = vfs_sync_worker;
- vfsp->vfs_sync_task = current;
- wmb();
- wake_up(&vfsp->vfs_wait_sync_task);
-
- INIT_LIST_HEAD(&tmp);
- timeleft = (xfs_syncd_centisecs * HZ) / 100;
+ timeleft = xfs_syncd_centisecs * msecs_to_jiffies(10);
for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
- timeleft = schedule_timeout(timeleft);
+ timeleft = schedule_timeout_interruptible(timeleft);
/* swsusp */
- try_to_freeze(PF_FREEZE);
- if (vfsp->vfs_flag & VFS_UMOUNT)
+ try_to_freeze();
+ if (kthread_should_stop())
break;
spin_lock(&vfsp->vfs_sync_lock);
*/
if (!timeleft || list_empty(&vfsp->vfs_sync_list)) {
if (!timeleft)
- timeleft = (xfs_syncd_centisecs * HZ) / 100;
+ timeleft = xfs_syncd_centisecs *
+ msecs_to_jiffies(10);
INIT_LIST_HEAD(&vfsp->vfs_sync_work.w_list);
list_add_tail(&vfsp->vfs_sync_work.w_list,
&vfsp->vfs_sync_list);
}
}
- vfsp->vfs_sync_task = NULL;
- wmb();
- wake_up(&vfsp->vfs_wait_sync_task);
-
return 0;
}
linvfs_start_syncd(
vfs_t *vfsp)
{
- int pid;
-
- pid = kernel_thread(xfssyncd, (void *) vfsp,
- CLONE_VM | CLONE_FS | CLONE_FILES);
- if (pid < 0)
- return -pid;
- wait_event(vfsp->vfs_wait_sync_task, vfsp->vfs_sync_task);
+ vfsp->vfs_sync_work.w_syncer = vfs_sync_worker;
+ vfsp->vfs_sync_work.w_vfs = vfsp;
+ vfsp->vfs_sync_task = kthread_run(xfssyncd, vfsp, "xfssyncd");
+ if (IS_ERR(vfsp->vfs_sync_task))
+ return -PTR_ERR(vfsp->vfs_sync_task);
return 0;
}
linvfs_stop_syncd(
vfs_t *vfsp)
{
- vfsp->vfs_flag |= VFS_UMOUNT;
- wmb();
-
- wake_up_process(vfsp->vfs_sync_task);
- wait_event(vfsp->vfs_wait_sync_task, !vfsp->vfs_sync_task);
+ kthread_stop(vfsp->vfs_sync_task);
}
STATIC void
}
STATIC int
+linvfs_quotasync(
+ struct super_block *sb,
+ int type)
+{
+ struct vfs *vfsp = LINVFS_GET_VFS(sb);
+ int error;
+
+ VFS_QUOTACTL(vfsp, Q_XQUOTASYNC, 0, (caddr_t)NULL, error);
+ return -error;
+}
+
+STATIC int
linvfs_getxstate(
struct super_block *sb,
struct fs_quota_stat *fqs)
};
STATIC struct quotactl_ops linvfs_qops = {
+ .quota_sync = linvfs_quotasync,
.get_xstate = linvfs_getxstate,
.set_xstate = linvfs_setxstate,
.get_xquota = linvfs_getxquota,
ktrace_init(64);
- error = init_inodecache();
+ error = linvfs_init_zones();
if (error < 0)
- goto undo_inodecache;
+ goto undo_zones;
error = pagebuf_init();
if (error < 0)
pagebuf_terminate();
undo_pagebuf:
- destroy_inodecache();
+ linvfs_destroy_zones();
-undo_inodecache:
+undo_zones:
return error;
}
unregister_filesystem(&xfs_fs_type);
xfs_cleanup();
pagebuf_terminate();
- destroy_inodecache();
+ linvfs_destroy_zones();
ktrace_uninit();
}
projects / profile / ivi / kernel-adaptation-intel-automotive.git / blobdiff