#include "xfs_acl.h"
#include "xfs_attr.h"
#include "xfs_clnt.h"
+#include "xfs_mru_cache.h"
+#include "xfs_filestream.h"
#include "xfs_fsops.h"
STATIC int xfs_sync(bhv_desc_t *, int, cred_t *);
xfs_dabuf_zone = kmem_zone_init(sizeof(xfs_dabuf_t), "xfs_dabuf");
xfs_ifork_zone = kmem_zone_init(sizeof(xfs_ifork_t), "xfs_ifork");
xfs_acl_zone_init(xfs_acl_zone, "xfs_acl");
+ xfs_mru_cache_init();
+ xfs_filestream_init();
/*
* The size of the zone allocated buf log item is the maximum
xfs_cleanup_procfs();
xfs_sysctl_unregister();
xfs_refcache_destroy();
+ xfs_filestream_uninit();
+ xfs_mru_cache_uninit();
xfs_acl_zone_destroy(xfs_acl_zone);
#ifdef XFS_DIR2_TRACE
mp->m_logbufs = ap->logbufs;
if (ap->logbufsize != -1 &&
ap->logbufsize != 0 &&
- ap->logbufsize != 16 * 1024 &&
- ap->logbufsize != 32 * 1024 &&
- ap->logbufsize != 64 * 1024 &&
- ap->logbufsize != 128 * 1024 &&
- ap->logbufsize != 256 * 1024) {
+ (ap->logbufsize < XLOG_MIN_RECORD_BSIZE ||
+ ap->logbufsize > XLOG_MAX_RECORD_BSIZE ||
+ !is_power_of_2(ap->logbufsize))) {
cmn_err(CE_WARN,
"XFS: invalid logbufsize: %d [not 16k,32k,64k,128k or 256k]",
ap->logbufsize);
else
mp->m_flags &= ~XFS_MOUNT_BARRIER;
+ if (ap->flags2 & XFSMNT2_FILESTREAMS)
+ mp->m_flags |= XFS_MOUNT_FILESTREAMS;
+
return 0;
}
if (mp->m_flags & XFS_MOUNT_BARRIER)
xfs_mountfs_check_barriers(mp);
+ if ((error = xfs_filestream_mount(mp)))
+ goto error2;
+
error = XFS_IOINIT(vfsp, args, flags);
if (error)
goto error2;
*/
xfs_refcache_purge_mp(mp);
+ /*
+ * Blow away any referenced inode in the filestreams cache.
+ * This can and will cause log traffic as inodes go inactive
+ * here.
+ */
+ xfs_filestream_unmount(mp);
+
XFS_bflush(mp->m_ddev_targp);
error = xfs_unmount_flush(mp, 0);
if (error)
* we can write the unmount record.
*/
do {
- xfs_syncsub(mp, SYNC_REMOUNT|SYNC_ATTR|SYNC_WAIT, NULL);
+ xfs_syncsub(mp, SYNC_INODE_QUIESCE, NULL);
pincount = xfs_flush_buftarg(mp->m_ddev_targp, 1);
if (!pincount) {
delay(50);
return 0;
}
+/*
+ * Second stage of a quiesce. The data is already synced, now we have to take
+ * care of the metadata. New transactions are already blocked, so we need to
+ * wait for any remaining transactions to drain out before proceding.
+ */
+STATIC void
+xfs_attr_quiesce(
+ xfs_mount_t *mp)
+{
+ /* wait for all modifications to complete */
+ while (atomic_read(&mp->m_active_trans) > 0)
+ delay(100);
+
+ /* flush inodes and push all remaining buffers out to disk */
+ xfs_quiesce_fs(mp);
+
+ ASSERT_ALWAYS(atomic_read(&mp->m_active_trans) == 0);
+
+ /* Push the superblock and write an unmount record */
+ xfs_log_sbcount(mp, 1);
+ xfs_log_unmount_write(mp);
+ xfs_unmountfs_writesb(mp);
+}
+
STATIC int
xfs_mntupdate(
bhv_desc_t *bdp,
mp->m_flags &= ~XFS_MOUNT_BARRIER;
}
} else if (!(vfsp->vfs_flag & VFS_RDONLY)) { /* rw -> ro */
- bhv_vfs_sync(vfsp, SYNC_FSDATA|SYNC_BDFLUSH|SYNC_ATTR, NULL);
- xfs_quiesce_fs(mp);
- xfs_log_unmount_write(mp);
- xfs_unmountfs_writesb(mp);
+ xfs_filestream_flush(mp);
+ bhv_vfs_sync(vfsp, SYNC_DATA_QUIESCE, NULL);
+ xfs_attr_quiesce(mp);
vfsp->vfs_flag |= VFS_RDONLY;
}
return 0;
{
xfs_mount_t *mp = XFS_BHVTOM(bdp);
+ if (flags & SYNC_IOWAIT)
+ xfs_filestream_flush(mp);
+
return xfs_syncsub(mp, flags, NULL);
}
* in the inode list.
*/
- if ((flags & SYNC_CLOSE) && (vp != NULL)) {
- /*
- * This is the shutdown case. We just need to
- * flush and invalidate all the pages associated
- * with the inode. Drop the inode lock since
- * we can't hold it across calls to the buffer
- * cache.
- *
- * We don't set the VREMAPPING bit in the vnode
- * here, because we don't hold the vnode lock
- * exclusively. It doesn't really matter, though,
- * because we only come here when we're shutting
- * down anyway.
- */
- xfs_iunlock(ip, XFS_ILOCK_SHARED);
-
- if (XFS_FORCED_SHUTDOWN(mp)) {
- bhv_vop_toss_pages(vp, 0, -1, FI_REMAPF);
- } else {
- error = bhv_vop_flushinval_pages(vp, 0, -1, FI_REMAPF);
+ /*
+ * If we have to flush data or wait for I/O completion
+ * we need to drop the ilock that we currently hold.
+ * If we need to drop the lock, insert a marker if we
+ * have not already done so.
+ */
+ if ((flags & (SYNC_CLOSE|SYNC_IOWAIT)) ||
+ ((flags & SYNC_DELWRI) && VN_DIRTY(vp))) {
+ if (mount_locked) {
+ IPOINTER_INSERT(ip, mp);
}
+ xfs_iunlock(ip, XFS_ILOCK_SHARED);
- xfs_ilock(ip, XFS_ILOCK_SHARED);
-
- } else if ((flags & SYNC_DELWRI) && (vp != NULL)) {
- if (VN_DIRTY(vp)) {
- /* We need to have dropped the lock here,
- * so insert a marker if we have not already
- * done so.
- */
- if (mount_locked) {
- IPOINTER_INSERT(ip, mp);
- }
-
- /*
- * Drop the inode lock since we can't hold it
- * across calls to the buffer cache.
- */
- xfs_iunlock(ip, XFS_ILOCK_SHARED);
+ if (flags & SYNC_CLOSE) {
+ /* Shutdown case. Flush and invalidate. */
+ if (XFS_FORCED_SHUTDOWN(mp))
+ bhv_vop_toss_pages(vp, 0, -1, FI_REMAPF);
+ else
+ error = bhv_vop_flushinval_pages(vp, 0,
+ -1, FI_REMAPF);
+ } else if ((flags & SYNC_DELWRI) && VN_DIRTY(vp)) {
error = bhv_vop_flush_pages(vp, (xfs_off_t)0,
-1, fflag, FI_NONE);
- xfs_ilock(ip, XFS_ILOCK_SHARED);
}
+ /*
+ * When freezing, we need to wait ensure all I/O (including direct
+ * I/O) is complete to ensure no further data modification can take
+ * place after this point
+ */
+ if (flags & SYNC_IOWAIT)
+ vn_iowait(vp);
+
+ xfs_ilock(ip, XFS_ILOCK_SHARED);
}
- /*
- * When freezing, we need to wait ensure all I/O (including direct
- * I/O) is complete to ensure no further data modification can take
- * place after this point
- */
- if (flags & SYNC_IOWAIT)
- vn_iowait(vp);
if (flags & SYNC_BDFLUSH) {
if ((flags & SYNC_ATTR) &&
xfs_refcache_purge_some(mp);
}
+ /*
+ * If asked, update the disk superblock with incore counter values if we
+ * are using non-persistent counters so that they don't get too far out
+ * of sync if we crash or get a forced shutdown. We don't want to force
+ * this to disk, just get a transaction into the iclogs....
+ */
+ if (flags & SYNC_SUPER)
+ xfs_log_sbcount(mp, 0);
+
/*
* Now check to see if the log needs a "dummy" transaction.
*/
* in stat(). */
#define MNTOPT_ATTR2 "attr2" /* do use attr2 attribute format */
#define MNTOPT_NOATTR2 "noattr2" /* do not use attr2 attribute format */
+#define MNTOPT_FILESTREAM "filestreams" /* use filestreams allocator */
STATIC unsigned long
suffix_strtoul(char *s, char **endp, unsigned int base)
args->flags |= XFSMNT_ATTR2;
} else if (!strcmp(this_char, MNTOPT_NOATTR2)) {
args->flags &= ~XFSMNT_ATTR2;
+ } else if (!strcmp(this_char, MNTOPT_FILESTREAM)) {
+ args->flags2 |= XFSMNT2_FILESTREAMS;
} else if (!strcmp(this_char, "osyncisdsync")) {
/* no-op, this is now the default */
cmn_err(CE_WARN,
}
/*
- * Second stage of a freeze. The data is already frozen, now we have to take
- * care of the metadata. New transactions are already blocked, so we need to
- * wait for any remaining transactions to drain out before proceding.
+ * Second stage of a freeze. The data is already frozen so we only
+ * need to take care of themetadata. Once that's done write a dummy
+ * record to dirty the log in case of a crash while frozen.
*/
STATIC void
xfs_freeze(
{
xfs_mount_t *mp = XFS_BHVTOM(bdp);
- /* wait for all modifications to complete */
- while (atomic_read(&mp->m_active_trans) > 0)
- delay(100);
-
- /* flush inodes and push all remaining buffers out to disk */
- xfs_quiesce_fs(mp);
-
- ASSERT_ALWAYS(atomic_read(&mp->m_active_trans) == 0);
-
- /* Push the superblock and write an unmount record */
- xfs_log_unmount_write(mp);
- xfs_unmountfs_writesb(mp);
+ xfs_attr_quiesce(mp);
xfs_fs_log_dummy(mp);
}
git.samba.org / sfrench / cifs-2.6.git / blobdiff