mp->m_flags |= XFS_MOUNT_NO_PERCPU_SB;
}
- AIL_LOCKINIT(&mp->m_ail_lock, "xfs_ail");
- spinlock_init(&mp->m_sb_lock, "xfs_sb");
+ spin_lock_init(&mp->m_sb_lock);
mutex_init(&mp->m_ilock);
- initnsema(&mp->m_growlock, 1, "xfs_grow");
- /*
- * Initialize the AIL.
- */
- xfs_trans_ail_init(mp);
-
+ mutex_init(&mp->m_growlock);
atomic_set(&mp->m_active_trans, 0);
return mp;
*/
void
xfs_mount_free(
- xfs_mount_t *mp,
- int remove_bhv)
+ xfs_mount_t *mp)
{
- if (mp->m_ihash)
- xfs_ihash_free(mp);
- if (mp->m_chash)
- xfs_chash_free(mp);
-
if (mp->m_perag) {
int agno;
sizeof(xfs_perag_t) * mp->m_sb.sb_agcount);
}
- AIL_LOCK_DESTROY(&mp->m_ail_lock);
+ spinlock_destroy(&mp->m_ail_lock);
spinlock_destroy(&mp->m_sb_lock);
mutex_destroy(&mp->m_ilock);
- freesema(&mp->m_growlock);
+ mutex_destroy(&mp->m_growlock);
if (mp->m_quotainfo)
XFS_QM_DONE(mp);
if (mp->m_logname != NULL)
kmem_free(mp->m_logname, strlen(mp->m_logname) + 1);
- if (remove_bhv) {
- struct bhv_vfs *vfsp = XFS_MTOVFS(mp);
-
- bhv_remove_all_vfsops(vfsp, 0);
- VFS_REMOVEBHV(vfsp, &mp->m_bhv);
- }
-
xfs_icsb_destroy_counters(mp);
- kmem_free(mp, sizeof(xfs_mount_t));
}
/*
return 0;
}
+STATIC void
+xfs_initialize_perag_icache(
+ xfs_perag_t *pag)
+{
+ if (!pag->pag_ici_init) {
+ rwlock_init(&pag->pag_ici_lock);
+ INIT_RADIX_TREE(&pag->pag_ici_root, GFP_ATOMIC);
+ pag->pag_ici_init = 1;
+ }
+}
+
xfs_agnumber_t
xfs_initialize_perag(
- bhv_vfs_t *vfs,
xfs_mount_t *mp,
xfs_agnumber_t agcount)
{
/* Clear the mount flag if no inode can overflow 32 bits
* on this filesystem, or if specifically requested..
*/
- if ((vfs->vfs_flag & VFS_32BITINODES) && ino > max_inum) {
+ if ((mp->m_flags & XFS_MOUNT_SMALL_INUMS) && ino > max_inum) {
mp->m_flags |= XFS_MOUNT_32BITINODES;
} else {
mp->m_flags &= ~XFS_MOUNT_32BITINODES;
pag->pagi_inodeok = 1;
if (index < max_metadata)
pag->pagf_metadata = 1;
+ xfs_initialize_perag_icache(pag);
}
} else {
/* Setup default behavior for smaller filesystems */
for (index = 0; index < agcount; index++) {
pag = &mp->m_perag[index];
pag->pagi_inodeok = 1;
+ xfs_initialize_perag_icache(pag);
}
}
return index;
}
+void
+xfs_sb_from_disk(
+ xfs_sb_t *to,
+ xfs_dsb_t *from)
+{
+ to->sb_magicnum = be32_to_cpu(from->sb_magicnum);
+ to->sb_blocksize = be32_to_cpu(from->sb_blocksize);
+ to->sb_dblocks = be64_to_cpu(from->sb_dblocks);
+ to->sb_rblocks = be64_to_cpu(from->sb_rblocks);
+ to->sb_rextents = be64_to_cpu(from->sb_rextents);
+ memcpy(&to->sb_uuid, &from->sb_uuid, sizeof(to->sb_uuid));
+ to->sb_logstart = be64_to_cpu(from->sb_logstart);
+ to->sb_rootino = be64_to_cpu(from->sb_rootino);
+ to->sb_rbmino = be64_to_cpu(from->sb_rbmino);
+ to->sb_rsumino = be64_to_cpu(from->sb_rsumino);
+ to->sb_rextsize = be32_to_cpu(from->sb_rextsize);
+ to->sb_agblocks = be32_to_cpu(from->sb_agblocks);
+ to->sb_agcount = be32_to_cpu(from->sb_agcount);
+ to->sb_rbmblocks = be32_to_cpu(from->sb_rbmblocks);
+ to->sb_logblocks = be32_to_cpu(from->sb_logblocks);
+ to->sb_versionnum = be16_to_cpu(from->sb_versionnum);
+ to->sb_sectsize = be16_to_cpu(from->sb_sectsize);
+ to->sb_inodesize = be16_to_cpu(from->sb_inodesize);
+ to->sb_inopblock = be16_to_cpu(from->sb_inopblock);
+ memcpy(&to->sb_fname, &from->sb_fname, sizeof(to->sb_fname));
+ to->sb_blocklog = from->sb_blocklog;
+ to->sb_sectlog = from->sb_sectlog;
+ to->sb_inodelog = from->sb_inodelog;
+ to->sb_inopblog = from->sb_inopblog;
+ to->sb_agblklog = from->sb_agblklog;
+ to->sb_rextslog = from->sb_rextslog;
+ to->sb_inprogress = from->sb_inprogress;
+ to->sb_imax_pct = from->sb_imax_pct;
+ to->sb_icount = be64_to_cpu(from->sb_icount);
+ to->sb_ifree = be64_to_cpu(from->sb_ifree);
+ to->sb_fdblocks = be64_to_cpu(from->sb_fdblocks);
+ to->sb_frextents = be64_to_cpu(from->sb_frextents);
+ to->sb_uquotino = be64_to_cpu(from->sb_uquotino);
+ to->sb_gquotino = be64_to_cpu(from->sb_gquotino);
+ to->sb_qflags = be16_to_cpu(from->sb_qflags);
+ to->sb_flags = from->sb_flags;
+ to->sb_shared_vn = from->sb_shared_vn;
+ to->sb_inoalignmt = be32_to_cpu(from->sb_inoalignmt);
+ to->sb_unit = be32_to_cpu(from->sb_unit);
+ to->sb_width = be32_to_cpu(from->sb_width);
+ to->sb_dirblklog = from->sb_dirblklog;
+ to->sb_logsectlog = from->sb_logsectlog;
+ to->sb_logsectsize = be16_to_cpu(from->sb_logsectsize);
+ to->sb_logsunit = be32_to_cpu(from->sb_logsunit);
+ to->sb_features2 = be32_to_cpu(from->sb_features2);
+}
+
/*
- * xfs_xlatesb
+ * Copy in core superblock to ondisk one.
*
- * data - on disk version of sb
- * sb - a superblock
- * dir - conversion direction: <0 - convert sb to buf
- * >0 - convert buf to sb
- * fields - which fields to copy (bitmask)
+ * The fields argument is mask of superblock fields to copy.
*/
void
-xfs_xlatesb(
- void *data,
- xfs_sb_t *sb,
- int dir,
+xfs_sb_to_disk(
+ xfs_dsb_t *to,
+ xfs_sb_t *from,
__int64_t fields)
{
- xfs_caddr_t buf_ptr;
- xfs_caddr_t mem_ptr;
+ xfs_caddr_t to_ptr = (xfs_caddr_t)to;
+ xfs_caddr_t from_ptr = (xfs_caddr_t)from;
xfs_sb_field_t f;
int first;
int size;
- ASSERT(dir);
ASSERT(fields);
-
if (!fields)
return;
- buf_ptr = (xfs_caddr_t)data;
- mem_ptr = (xfs_caddr_t)sb;
-
while (fields) {
f = (xfs_sb_field_t)xfs_lowbit64((__uint64_t)fields);
first = xfs_sb_info[f].offset;
ASSERT(xfs_sb_info[f].type == 0 || xfs_sb_info[f].type == 1);
if (size == 1 || xfs_sb_info[f].type == 1) {
- if (dir > 0) {
- memcpy(mem_ptr + first, buf_ptr + first, size);
- } else {
- memcpy(buf_ptr + first, mem_ptr + first, size);
- }
+ memcpy(to_ptr + first, from_ptr + first, size);
} else {
switch (size) {
case 2:
- INT_XLATE(*(__uint16_t*)(buf_ptr+first),
- *(__uint16_t*)(mem_ptr+first),
- dir, ARCH_CONVERT);
+ *(__be16 *)(to_ptr + first) =
+ cpu_to_be16(*(__u16 *)(from_ptr + first));
break;
case 4:
- INT_XLATE(*(__uint32_t*)(buf_ptr+first),
- *(__uint32_t*)(mem_ptr+first),
- dir, ARCH_CONVERT);
+ *(__be32 *)(to_ptr + first) =
+ cpu_to_be32(*(__u32 *)(from_ptr + first));
break;
case 8:
- INT_XLATE(*(__uint64_t*)(buf_ptr+first),
- *(__uint64_t*)(mem_ptr+first), dir, ARCH_CONVERT);
+ *(__be64 *)(to_ptr + first) =
+ cpu_to_be64(*(__u64 *)(from_ptr + first));
break;
default:
ASSERT(0);
unsigned int sector_size;
unsigned int extra_flags;
xfs_buf_t *bp;
- xfs_sb_t *sbp;
int error;
ASSERT(mp->m_sb_bp == NULL);
* Initialize the mount structure from the superblock.
* But first do some basic consistency checking.
*/
- sbp = XFS_BUF_TO_SBP(bp);
- xfs_xlatesb(XFS_BUF_PTR(bp), &(mp->m_sb), 1, XFS_SB_ALL_BITS);
+ xfs_sb_from_disk(&mp->m_sb, XFS_BUF_TO_SBP(bp));
error = xfs_mount_validate_sb(mp, &(mp->m_sb), flags);
if (error) {
int i;
mp->m_agfrotor = mp->m_agirotor = 0;
- spinlock_init(&mp->m_agirotor_lock, "m_agirotor_lock");
+ spin_lock_init(&mp->m_agirotor_lock);
mp->m_maxagi = mp->m_sb.sb_agcount;
mp->m_blkbit_log = sbp->sb_blocklog + XFS_NBBYLOG;
mp->m_blkbb_log = sbp->sb_blocklog - BBSHIFT;
uint64_t bfreelst = 0;
uint64_t btree = 0;
int error;
- int s;
for (index = 0; index < agcount; index++) {
/*
/*
* Overwrite incore superblock counters with just-read data
*/
- s = XFS_SB_LOCK(mp);
+ spin_lock(&mp->m_sb_lock);
sbp->sb_ifree = ifree;
sbp->sb_icount = ialloc;
sbp->sb_fdblocks = bfree + bfreelst + btree;
- XFS_SB_UNLOCK(mp, s);
+ spin_unlock(&mp->m_sb_lock);
/* Fixup the per-cpu counters as well. */
xfs_icsb_reinit_counters(mp);
}
/*
- * xfs_mountfs
- *
- * This function does the following on an initial mount of a file system:
- * - reads the superblock from disk and init the mount struct
- * - if we're a 32-bit kernel, do a size check on the superblock
- * so we don't mount terabyte filesystems
- * - init mount struct realtime fields
- * - allocate inode hash table for fs
- * - init directory manager
- * - perform recovery and init the log manager
+ * Update alignment values based on mount options and sb values
*/
-int
-xfs_mountfs(
- bhv_vfs_t *vfsp,
- xfs_mount_t *mp,
- int mfsi_flags)
+STATIC int
+xfs_update_alignment(xfs_mount_t *mp, int mfsi_flags, __uint64_t *update_flags)
{
- xfs_buf_t *bp;
xfs_sb_t *sbp = &(mp->m_sb);
- xfs_inode_t *rip;
- bhv_vnode_t *rvp = NULL;
- int readio_log, writeio_log;
- xfs_daddr_t d;
- __uint64_t resblks;
- __int64_t update_flags;
- uint quotamount, quotaflags;
- int agno;
- int uuid_mounted = 0;
- int error = 0;
-
- if (mp->m_sb_bp == NULL) {
- if ((error = xfs_readsb(mp, mfsi_flags))) {
- return error;
- }
- }
- xfs_mount_common(mp, sbp);
- /*
- * Check if sb_agblocks is aligned at stripe boundary
- * If sb_agblocks is NOT aligned turn off m_dalign since
- * allocator alignment is within an ag, therefore ag has
- * to be aligned at stripe boundary.
- */
- update_flags = 0LL;
if (mp->m_dalign && !(mfsi_flags & XFS_MFSI_SECOND)) {
/*
* If stripe unit and stripe width are not multiples
if (mp->m_flags & XFS_MOUNT_RETERR) {
cmn_err(CE_WARN,
"XFS: alignment check 1 failed");
- error = XFS_ERROR(EINVAL);
- goto error1;
+ return XFS_ERROR(EINVAL);
}
mp->m_dalign = mp->m_swidth = 0;
} else {
mp->m_dalign = XFS_BB_TO_FSBT(mp, mp->m_dalign);
if (mp->m_dalign && (sbp->sb_agblocks % mp->m_dalign)) {
if (mp->m_flags & XFS_MOUNT_RETERR) {
- error = XFS_ERROR(EINVAL);
- goto error1;
+ return XFS_ERROR(EINVAL);
}
xfs_fs_cmn_err(CE_WARN, mp,
"stripe alignment turned off: sunit(%d)/swidth(%d) incompatible with agsize(%d)",
"stripe alignment turned off: sunit(%d) less than bsize(%d)",
mp->m_dalign,
mp->m_blockmask +1);
- error = XFS_ERROR(EINVAL);
- goto error1;
+ return XFS_ERROR(EINVAL);
}
mp->m_swidth = 0;
}
if (XFS_SB_VERSION_HASDALIGN(sbp)) {
if (sbp->sb_unit != mp->m_dalign) {
sbp->sb_unit = mp->m_dalign;
- update_flags |= XFS_SB_UNIT;
+ *update_flags |= XFS_SB_UNIT;
}
if (sbp->sb_width != mp->m_swidth) {
sbp->sb_width = mp->m_swidth;
- update_flags |= XFS_SB_WIDTH;
+ *update_flags |= XFS_SB_WIDTH;
}
}
} else if ((mp->m_flags & XFS_MOUNT_NOALIGN) != XFS_MOUNT_NOALIGN &&
mp->m_swidth = sbp->sb_width;
}
- xfs_alloc_compute_maxlevels(mp);
- xfs_bmap_compute_maxlevels(mp, XFS_DATA_FORK);
- xfs_bmap_compute_maxlevels(mp, XFS_ATTR_FORK);
- xfs_ialloc_compute_maxlevels(mp);
+ return 0;
+}
- if (sbp->sb_imax_pct) {
- __uint64_t icount;
+/*
+ * Set the maximum inode count for this filesystem
+ */
+STATIC void
+xfs_set_maxicount(xfs_mount_t *mp)
+{
+ xfs_sb_t *sbp = &(mp->m_sb);
+ __uint64_t icount;
- /* Make sure the maximum inode count is a multiple of the
- * units we allocate inodes in.
+ if (sbp->sb_imax_pct) {
+ /*
+ * Make sure the maximum inode count is a multiple
+ * of the units we allocate inodes in.
*/
-
icount = sbp->sb_dblocks * sbp->sb_imax_pct;
do_div(icount, 100);
do_div(icount, mp->m_ialloc_blks);
mp->m_maxicount = (icount * mp->m_ialloc_blks) <<
sbp->sb_inopblog;
- } else
+ } else {
mp->m_maxicount = 0;
-
- mp->m_maxioffset = xfs_max_file_offset(sbp->sb_blocklog);
-
- /*
- * XFS uses the uuid from the superblock as the unique
- * identifier for fsid. We can not use the uuid from the volume
- * since a single partition filesystem is identical to a single
- * partition volume/filesystem.
- */
- if ((mfsi_flags & XFS_MFSI_SECOND) == 0 &&
- (mp->m_flags & XFS_MOUNT_NOUUID) == 0) {
- __uint64_t ret64;
- if (xfs_uuid_mount(mp)) {
- error = XFS_ERROR(EINVAL);
- goto error1;
- }
- uuid_mounted=1;
- ret64 = uuid_hash64(&sbp->sb_uuid);
- memcpy(&vfsp->vfs_fsid, &ret64, sizeof(ret64));
}
+}
+
+/*
+ * Set the default minimum read and write sizes unless
+ * already specified in a mount option.
+ * We use smaller I/O sizes when the file system
+ * is being used for NFS service (wsync mount option).
+ */
+STATIC void
+xfs_set_rw_sizes(xfs_mount_t *mp)
+{
+ xfs_sb_t *sbp = &(mp->m_sb);
+ int readio_log, writeio_log;
- /*
- * Set the default minimum read and write sizes unless
- * already specified in a mount option.
- * We use smaller I/O sizes when the file system
- * is being used for NFS service (wsync mount option).
- */
if (!(mp->m_flags & XFS_MOUNT_DFLT_IOSIZE)) {
if (mp->m_flags & XFS_MOUNT_WSYNC) {
readio_log = XFS_WSYNC_READIO_LOG;
writeio_log = mp->m_writeio_log;
}
- /*
- * Set the number of readahead buffers to use based on
- * physical memory size.
- */
- if (xfs_physmem <= 4096) /* <= 16MB */
- mp->m_nreadaheads = XFS_RW_NREADAHEAD_16MB;
- else if (xfs_physmem <= 8192) /* <= 32MB */
- mp->m_nreadaheads = XFS_RW_NREADAHEAD_32MB;
- else
- mp->m_nreadaheads = XFS_RW_NREADAHEAD_K32;
if (sbp->sb_blocklog > readio_log) {
mp->m_readio_log = sbp->sb_blocklog;
} else {
mp->m_writeio_log = writeio_log;
}
mp->m_writeio_blocks = 1 << (mp->m_writeio_log - sbp->sb_blocklog);
+}
- /*
- * Set the inode cluster size based on the physical memory
- * size. This may still be overridden by the file system
- * block size if it is larger than the chosen cluster size.
- */
- if (xfs_physmem <= btoc(32 * 1024 * 1024)) { /* <= 32 MB */
- mp->m_inode_cluster_size = XFS_INODE_SMALL_CLUSTER_SIZE;
- } else {
- mp->m_inode_cluster_size = XFS_INODE_BIG_CLUSTER_SIZE;
- }
- /*
- * Set whether we're using inode alignment.
- */
+/*
+ * Set whether we're using inode alignment.
+ */
+STATIC void
+xfs_set_inoalignment(xfs_mount_t *mp)
+{
if (XFS_SB_VERSION_HASALIGN(&mp->m_sb) &&
mp->m_sb.sb_inoalignmt >=
XFS_B_TO_FSBT(mp, mp->m_inode_cluster_size))
mp->m_sinoalign = mp->m_dalign;
else
mp->m_sinoalign = 0;
- /*
- * Check that the data (and log if separate) are an ok size.
- */
+}
+
+/*
+ * Check that the data (and log if separate) are an ok size.
+ */
+STATIC int
+xfs_check_sizes(xfs_mount_t *mp, int mfsi_flags)
+{
+ xfs_buf_t *bp;
+ xfs_daddr_t d;
+ int error;
+
d = (xfs_daddr_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_dblocks);
if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_dblocks) {
cmn_err(CE_WARN, "XFS: size check 1 failed");
- error = XFS_ERROR(E2BIG);
- goto error1;
+ return XFS_ERROR(E2BIG);
}
error = xfs_read_buf(mp, mp->m_ddev_targp,
d - XFS_FSS_TO_BB(mp, 1),
xfs_buf_relse(bp);
} else {
cmn_err(CE_WARN, "XFS: size check 2 failed");
- if (error == ENOSPC) {
+ if (error == ENOSPC)
error = XFS_ERROR(E2BIG);
- }
- goto error1;
+ return error;
}
if (((mfsi_flags & XFS_MFSI_CLIENT) == 0) &&
d = (xfs_daddr_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_logblocks);
if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_logblocks) {
cmn_err(CE_WARN, "XFS: size check 3 failed");
- error = XFS_ERROR(E2BIG);
- goto error1;
+ return XFS_ERROR(E2BIG);
}
error = xfs_read_buf(mp, mp->m_logdev_targp,
d - XFS_FSB_TO_BB(mp, 1),
xfs_buf_relse(bp);
} else {
cmn_err(CE_WARN, "XFS: size check 3 failed");
- if (error == ENOSPC) {
+ if (error == ENOSPC)
error = XFS_ERROR(E2BIG);
- }
+ return error;
+ }
+ }
+ return 0;
+}
+
+/*
+ * xfs_mountfs
+ *
+ * This function does the following on an initial mount of a file system:
+ * - reads the superblock from disk and init the mount struct
+ * - if we're a 32-bit kernel, do a size check on the superblock
+ * so we don't mount terabyte filesystems
+ * - init mount struct realtime fields
+ * - allocate inode hash table for fs
+ * - init directory manager
+ * - perform recovery and init the log manager
+ */
+int
+xfs_mountfs(
+ xfs_mount_t *mp,
+ int mfsi_flags)
+{
+ xfs_sb_t *sbp = &(mp->m_sb);
+ xfs_inode_t *rip;
+ bhv_vnode_t *rvp = NULL;
+ __uint64_t resblks;
+ __int64_t update_flags = 0LL;
+ uint quotamount, quotaflags;
+ int agno;
+ int uuid_mounted = 0;
+ int error = 0;
+
+ if (mp->m_sb_bp == NULL) {
+ error = xfs_readsb(mp, mfsi_flags);
+ if (error)
+ return error;
+ }
+ xfs_mount_common(mp, sbp);
+
+ /*
+ * Check if sb_agblocks is aligned at stripe boundary
+ * If sb_agblocks is NOT aligned turn off m_dalign since
+ * allocator alignment is within an ag, therefore ag has
+ * to be aligned at stripe boundary.
+ */
+ error = xfs_update_alignment(mp, mfsi_flags, &update_flags);
+ if (error)
+ goto error1;
+
+ xfs_alloc_compute_maxlevels(mp);
+ xfs_bmap_compute_maxlevels(mp, XFS_DATA_FORK);
+ xfs_bmap_compute_maxlevels(mp, XFS_ATTR_FORK);
+ xfs_ialloc_compute_maxlevels(mp);
+
+ xfs_set_maxicount(mp);
+
+ mp->m_maxioffset = xfs_max_file_offset(sbp->sb_blocklog);
+
+ /*
+ * XFS uses the uuid from the superblock as the unique
+ * identifier for fsid. We can not use the uuid from the volume
+ * since a single partition filesystem is identical to a single
+ * partition volume/filesystem.
+ */
+ if ((mfsi_flags & XFS_MFSI_SECOND) == 0 &&
+ (mp->m_flags & XFS_MOUNT_NOUUID) == 0) {
+ if (xfs_uuid_mount(mp)) {
+ error = XFS_ERROR(EINVAL);
goto error1;
}
+ uuid_mounted=1;
}
+ /*
+ * Set the minimum read and write sizes
+ */
+ xfs_set_rw_sizes(mp);
+
+ /*
+ * Set the inode cluster size.
+ * This may still be overridden by the file system
+ * block size if it is larger than the chosen cluster size.
+ */
+ mp->m_inode_cluster_size = XFS_INODE_BIG_CLUSTER_SIZE;
+
+ /*
+ * Set inode alignment fields
+ */
+ xfs_set_inoalignment(mp);
+
+ /*
+ * Check that the data (and log if separate) are an ok size.
+ */
+ error = xfs_check_sizes(mp, mfsi_flags);
+ if (error)
+ goto error1;
+
/*
* Initialize realtime fields in the mount structure
*/
- if ((error = xfs_rtmount_init(mp))) {
+ error = xfs_rtmount_init(mp);
+ if (error) {
cmn_err(CE_WARN, "XFS: RT mount failed");
goto error1;
}
*/
uuid_getnodeuniq(&sbp->sb_uuid, mp->m_fixedfsid);
- /*
- * The vfs structure needs to have a file system independent
- * way of checking for the invariant file system ID. Since it
- * can't look at mount structures it has a pointer to the data
- * in the mount structure.
- *
- * File systems that don't support user level file handles (i.e.
- * all of them except for XFS) will leave vfs_altfsid as NULL.
- */
- vfsp->vfs_altfsid = (xfs_fsid_t *)mp->m_fixedfsid;
mp->m_dmevmask = 0; /* not persistent; set after each mount */
xfs_dir_mount(mp);
*/
xfs_trans_init(mp);
- /*
- * Allocate and initialize the inode hash table for this
- * file system.
- */
- xfs_ihash_init(mp);
- xfs_chash_init(mp);
-
/*
* Allocate and initialize the per-ag data.
*/
mp->m_perag =
kmem_zalloc(sbp->sb_agcount * sizeof(xfs_perag_t), KM_SLEEP);
- mp->m_maxagi = xfs_initialize_perag(vfsp, mp, sbp->sb_agcount);
+ mp->m_maxagi = xfs_initialize_perag(mp, sbp->sb_agcount);
/*
* log's mount-time initialization. Perform 1st part recovery if needed
/*
* Initialize realtime inode pointers in the mount structure
*/
- if ((error = xfs_rtmount_inodes(mp))) {
+ error = xfs_rtmount_inodes(mp);
+ if (error) {
/*
* Free up the root inode.
*/
* If fs is not mounted readonly, then update the superblock
* unit and width changes.
*/
- if (update_flags && !(vfsp->vfs_flag & VFS_RDONLY))
+ if (update_flags && !(mp->m_flags & XFS_MOUNT_RDONLY))
xfs_mount_log_sbunit(mp, update_flags);
/*
* Initialise the XFS quota management subsystem for this mount
*/
- if ((error = XFS_QM_INIT(mp, "amount, "aflags)))
+ error = XFS_QM_INIT(mp, "amount, "aflags);
+ if (error)
goto error4;
/*
/*
* Complete the quota initialisation, post-log-replay component.
*/
- if ((error = XFS_QM_MOUNT(mp, quotamount, quotaflags, mfsi_flags)))
+ error = XFS_QM_MOUNT(mp, quotamount, quotaflags, mfsi_flags);
+ if (error)
goto error4;
/*
error3:
xfs_log_unmount_dealloc(mp);
error2:
- xfs_ihash_free(mp);
- xfs_chash_free(mp);
for (agno = 0; agno < sbp->sb_agcount; agno++)
if (mp->m_perag[agno].pagb_list)
kmem_free(mp->m_perag[agno].pagb_list,
int
xfs_unmountfs(xfs_mount_t *mp, struct cred *cr)
{
- struct bhv_vfs *vfsp = XFS_MTOVFS(mp);
-#if defined(DEBUG) || defined(INDUCE_IO_ERROR)
- int64_t fsid;
-#endif
__uint64_t resblks;
/*
xfs_uuid_unmount(mp);
#if defined(DEBUG) || defined(INDUCE_IO_ERROR)
- /*
- * clear all error tags on this filesystem
- */
- memcpy(&fsid, &vfsp->vfs_fsid, sizeof(int64_t));
- xfs_errortag_clearall_umount(fsid, mp->m_fsname, 0);
+ xfs_errortag_clearall(mp, 0);
#endif
- XFS_IODONE(vfsp);
- xfs_mount_free(mp, 1);
+ xfs_mount_free(mp);
return 0;
}
void
xfs_unmountfs_close(xfs_mount_t *mp, struct cred *cr)
{
- if (mp->m_logdev_targp != mp->m_ddev_targp)
+ if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp)
xfs_free_buftarg(mp->m_logdev_targp, 1);
if (mp->m_rtdev_targp)
xfs_free_buftarg(mp->m_rtdev_targp, 1);
int
xfs_fs_writable(xfs_mount_t *mp)
{
- bhv_vfs_t *vfsp = XFS_MTOVFS(mp);
-
- return !(vfs_test_for_freeze(vfsp) || XFS_FORCED_SHUTDOWN(mp) ||
- (vfsp->vfs_flag & VFS_RDONLY));
+ return !(xfs_test_for_freeze(mp) || XFS_FORCED_SHUTDOWN(mp) ||
+ (mp->m_flags & XFS_MOUNT_RDONLY));
}
/*
return 0;
}
+STATIC void
+xfs_mark_shared_ro(
+ xfs_mount_t *mp,
+ xfs_buf_t *bp)
+{
+ xfs_dsb_t *sb = XFS_BUF_TO_SBP(bp);
+ __uint16_t version;
+
+ if (!(sb->sb_flags & XFS_SBF_READONLY))
+ sb->sb_flags |= XFS_SBF_READONLY;
+
+ version = be16_to_cpu(sb->sb_versionnum);
+ if ((version & XFS_SB_VERSION_NUMBITS) != XFS_SB_VERSION_4 ||
+ !(version & XFS_SB_VERSION_SHAREDBIT))
+ version |= XFS_SB_VERSION_SHAREDBIT;
+ sb->sb_versionnum = cpu_to_be16(version);
+}
+
int
xfs_unmountfs_writesb(xfs_mount_t *mp)
{
xfs_buf_t *sbp;
- xfs_sb_t *sb;
int error = 0;
/*
* skip superblock write if fs is read-only, or
* if we are doing a forced umount.
*/
- if (!(XFS_MTOVFS(mp)->vfs_flag & VFS_RDONLY ||
+ if (!((mp->m_flags & XFS_MOUNT_RDONLY) ||
XFS_FORCED_SHUTDOWN(mp))) {
sbp = xfs_getsb(mp, 0);
- sb = XFS_BUF_TO_SBP(sbp);
/*
* mark shared-readonly if desired
*/
- if (mp->m_mk_sharedro) {
- if (!(sb->sb_flags & XFS_SBF_READONLY))
- sb->sb_flags |= XFS_SBF_READONLY;
- if (!XFS_SB_VERSION_HASSHARED(sb))
- XFS_SB_VERSION_ADDSHARED(sb);
- xfs_fs_cmn_err(CE_NOTE, mp,
- "Unmounting, marking shared read-only");
- }
+ if (mp->m_mk_sharedro)
+ xfs_mark_shared_ro(mp, sbp);
XFS_BUF_UNDONE(sbp);
XFS_BUF_UNREAD(sbp);
int first;
int last;
xfs_mount_t *mp;
- xfs_sb_t *sbp;
xfs_sb_field_t f;
ASSERT(fields);
return;
mp = tp->t_mountp;
bp = xfs_trans_getsb(tp, mp, 0);
- sbp = XFS_BUF_TO_SBP(bp);
first = sizeof(xfs_sb_t);
last = 0;
/* translate/copy */
- xfs_xlatesb(XFS_BUF_PTR(bp), &(mp->m_sb), -1, fields);
+ xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb, fields);
/* find modified range */
* Fields are not allowed to dip below zero, so if the delta would
* do this do not apply it and return EINVAL.
*
- * The SB_LOCK must be held when this routine is called.
+ * The m_sb_lock must be held when this routine is called.
*/
int
xfs_mod_incore_sb_unlocked(
/*
* xfs_mod_incore_sb() is used to change a field in the in-core
* superblock structure by the specified delta. This modification
- * is protected by the SB_LOCK. Just use the xfs_mod_incore_sb_unlocked()
+ * is protected by the m_sb_lock. Just use the xfs_mod_incore_sb_unlocked()
* routine to do the work.
*/
int
int64_t delta,
int rsvd)
{
- unsigned long s;
int status;
/* check for per-cpu counters */
/* FALLTHROUGH */
#endif
default:
- s = XFS_SB_LOCK(mp);
+ spin_lock(&mp->m_sb_lock);
status = xfs_mod_incore_sb_unlocked(mp, field, delta, rsvd);
- XFS_SB_UNLOCK(mp, s);
+ spin_unlock(&mp->m_sb_lock);
break;
}
int
xfs_mod_incore_sb_batch(xfs_mount_t *mp, xfs_mod_sb_t *msb, uint nmsb, int rsvd)
{
- unsigned long s;
int status=0;
xfs_mod_sb_t *msbp;
* Loop through the array of mod structures and apply each
* individually. If any fail, then back out all those
* which have already been applied. Do all of this within
- * the scope of the SB_LOCK so that all of the changes will
+ * the scope of the m_sb_lock so that all of the changes will
* be atomic.
*/
- s = XFS_SB_LOCK(mp);
+ spin_lock(&mp->m_sb_lock);
msbp = &msb[0];
for (msbp = &msbp[0]; msbp < (msb + nmsb); msbp++) {
/*
case XFS_SBS_IFREE:
case XFS_SBS_FDBLOCKS:
if (!(mp->m_flags & XFS_MOUNT_NO_PERCPU_SB)) {
- XFS_SB_UNLOCK(mp, s);
+ spin_unlock(&mp->m_sb_lock);
status = xfs_icsb_modify_counters(mp,
msbp->msb_field,
msbp->msb_delta, rsvd);
- s = XFS_SB_LOCK(mp);
+ spin_lock(&mp->m_sb_lock);
break;
}
/* FALLTHROUGH */
case XFS_SBS_IFREE:
case XFS_SBS_FDBLOCKS:
if (!(mp->m_flags & XFS_MOUNT_NO_PERCPU_SB)) {
- XFS_SB_UNLOCK(mp, s);
+ spin_unlock(&mp->m_sb_lock);
status = xfs_icsb_modify_counters(mp,
msbp->msb_field,
-(msbp->msb_delta),
rsvd);
- s = XFS_SB_LOCK(mp);
+ spin_lock(&mp->m_sb_lock);
break;
}
/* FALLTHROUGH */
msbp--;
}
}
- XFS_SB_UNLOCK(mp, s);
+ spin_unlock(&mp->m_sb_lock);
return status;
}
*
* Locking rules:
*
- * 1. XFS_SB_LOCK() before picking up per-cpu locks
+ * 1. m_sb_lock before picking up per-cpu locks
* 2. per-cpu locks always picked up via for_each_online_cpu() order
- * 3. accurate counter sync requires XFS_SB_LOCK + per cpu locks
+ * 3. accurate counter sync requires m_sb_lock + per cpu locks
* 4. modifying per-cpu counters requires holding per-cpu lock
- * 5. modifying global counters requires holding XFS_SB_LOCK
- * 6. enabling or disabling a counter requires holding the XFS_SB_LOCK
+ * 5. modifying global counters requires holding m_sb_lock
+ * 6. enabling or disabling a counter requires holding the m_sb_lock
* and _none_ of the per-cpu locks.
*
* Disabled counters are only ever re-enabled by a balance operation
{
xfs_icsb_cnts_t *cntp;
xfs_mount_t *mp;
- int s;
mp = (xfs_mount_t *)container_of(nfb, xfs_mount_t, m_icsb_notifier);
cntp = (xfs_icsb_cnts_t *)
* count into the total on the global superblock and
* re-enable the counters. */
xfs_icsb_lock(mp);
- s = XFS_SB_LOCK(mp);
+ spin_lock(&mp->m_sb_lock);
xfs_icsb_disable_counter(mp, XFS_SBS_ICOUNT);
xfs_icsb_disable_counter(mp, XFS_SBS_IFREE);
xfs_icsb_disable_counter(mp, XFS_SBS_FDBLOCKS);
XFS_ICSB_SB_LOCKED, 0);
xfs_icsb_balance_counter(mp, XFS_SBS_FDBLOCKS,
XFS_ICSB_SB_LOCKED, 0);
- XFS_SB_UNLOCK(mp, s);
+ spin_unlock(&mp->m_sb_lock);
xfs_icsb_unlock(mp);
break;
}
int flags)
{
xfs_icsb_cnts_t cnt;
- int s;
/* Pass 1: lock all counters */
if ((flags & XFS_ICSB_SB_LOCKED) == 0)
- s = XFS_SB_LOCK(mp);
+ spin_lock(&mp->m_sb_lock);
xfs_icsb_count(mp, &cnt, flags);
mp->m_sb.sb_fdblocks = cnt.icsb_fdblocks;
if ((flags & XFS_ICSB_SB_LOCKED) == 0)
- XFS_SB_UNLOCK(mp, s);
+ spin_unlock(&mp->m_sb_lock);
}
/*
{
uint64_t count, resid;
int weight = num_online_cpus();
- int s;
uint64_t min = (uint64_t)min_per_cpu;
if (!(flags & XFS_ICSB_SB_LOCKED))
- s = XFS_SB_LOCK(mp);
+ spin_lock(&mp->m_sb_lock);
/* disable counter and sync counter */
xfs_icsb_disable_counter(mp, field);
xfs_icsb_enable_counter(mp, field, count, resid);
out:
if (!(flags & XFS_ICSB_SB_LOCKED))
- XFS_SB_UNLOCK(mp, s);
+ spin_unlock(&mp->m_sb_lock);
}
-int
+STATIC int
xfs_icsb_modify_counters(
xfs_mount_t *mp,
xfs_sb_field_t field,
{
xfs_icsb_cnts_t *icsbp;
long long lcounter; /* long counter for 64 bit fields */
- int cpu, ret = 0, s;
+ int cpu, ret = 0;
might_sleep();
again:
* running atomically here, we know a rebalance cannot
* be in progress. Hence we can go straight to operating
* on the global superblock. We do not call xfs_mod_incore_sb()
- * here even though we need to get the SB_LOCK. Doing so
+ * here even though we need to get the m_sb_lock. Doing so
* will cause us to re-enter this function and deadlock.
- * Hence we get the SB_LOCK ourselves and then call
+ * Hence we get the m_sb_lock ourselves and then call
* xfs_mod_incore_sb_unlocked() as the unlocked path operates
* directly on the global counters.
*/
- s = XFS_SB_LOCK(mp);
+ spin_lock(&mp->m_sb_lock);
ret = xfs_mod_incore_sb_unlocked(mp, field, delta, rsvd);
- XFS_SB_UNLOCK(mp, s);
+ spin_unlock(&mp->m_sb_lock);
/*
* Now that we've modified the global superblock, we
projects / linux-2.6-omap-h63xx.git / blobdiff