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path: root/fs/xfs/xfs_mount.c
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Diffstat (limited to 'fs/xfs/xfs_mount.c')
-rw-r--r--fs/xfs/xfs_mount.c82
1 files changed, 54 insertions, 28 deletions
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 9b9540db17a6..40d4e8b4e193 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -45,6 +45,7 @@
#include "xfs_rmap_btree.h"
#include "xfs_refcount_btree.h"
#include "xfs_reflink.h"
+#include "xfs_extent_busy.h"
static DEFINE_MUTEX(xfs_uuid_table_mutex);
@@ -72,17 +73,20 @@ xfs_uuid_mount(
uuid_t *uuid = &mp->m_sb.sb_uuid;
int hole, i;
+ /* Publish UUID in struct super_block */
+ uuid_copy(&mp->m_super->s_uuid, uuid);
+
if (mp->m_flags & XFS_MOUNT_NOUUID)
return 0;
- if (uuid_is_nil(uuid)) {
- xfs_warn(mp, "Filesystem has nil UUID - can't mount");
+ if (uuid_is_null(uuid)) {
+ xfs_warn(mp, "Filesystem has null UUID - can't mount");
return -EINVAL;
}
mutex_lock(&xfs_uuid_table_mutex);
for (i = 0, hole = -1; i < xfs_uuid_table_size; i++) {
- if (uuid_is_nil(&xfs_uuid_table[i])) {
+ if (uuid_is_null(&xfs_uuid_table[i])) {
hole = i;
continue;
}
@@ -119,7 +123,7 @@ xfs_uuid_unmount(
mutex_lock(&xfs_uuid_table_mutex);
for (i = 0; i < xfs_uuid_table_size; i++) {
- if (uuid_is_nil(&xfs_uuid_table[i]))
+ if (uuid_is_null(&xfs_uuid_table[i]))
continue;
if (!uuid_equal(uuid, &xfs_uuid_table[i]))
continue;
@@ -169,7 +173,7 @@ xfs_free_perag(
int
xfs_sb_validate_fsb_count(
xfs_sb_t *sbp,
- __uint64_t nblocks)
+ uint64_t nblocks)
{
ASSERT(PAGE_SHIFT >= sbp->sb_blocklog);
ASSERT(sbp->sb_blocklog >= BBSHIFT);
@@ -187,7 +191,7 @@ xfs_initialize_perag(
xfs_agnumber_t *maxagi)
{
xfs_agnumber_t index;
- xfs_agnumber_t first_initialised = 0;
+ xfs_agnumber_t first_initialised = NULLAGNUMBER;
xfs_perag_t *pag;
int error = -ENOMEM;
@@ -202,22 +206,21 @@ xfs_initialize_perag(
xfs_perag_put(pag);
continue;
}
- if (!first_initialised)
- first_initialised = index;
pag = kmem_zalloc(sizeof(*pag), KM_MAYFAIL);
if (!pag)
- goto out_unwind;
+ goto out_unwind_new_pags;
pag->pag_agno = index;
pag->pag_mount = mp;
spin_lock_init(&pag->pag_ici_lock);
mutex_init(&pag->pag_ici_reclaim_lock);
INIT_RADIX_TREE(&pag->pag_ici_root, GFP_ATOMIC);
if (xfs_buf_hash_init(pag))
- goto out_unwind;
+ goto out_free_pag;
+ init_waitqueue_head(&pag->pagb_wait);
if (radix_tree_preload(GFP_NOFS))
- goto out_unwind;
+ goto out_hash_destroy;
spin_lock(&mp->m_perag_lock);
if (radix_tree_insert(&mp->m_perag_tree, index, pag)) {
@@ -225,10 +228,13 @@ xfs_initialize_perag(
spin_unlock(&mp->m_perag_lock);
radix_tree_preload_end();
error = -EEXIST;
- goto out_unwind;
+ goto out_hash_destroy;
}
spin_unlock(&mp->m_perag_lock);
radix_tree_preload_end();
+ /* first new pag is fully initialized */
+ if (first_initialised == NULLAGNUMBER)
+ first_initialised = index;
}
index = xfs_set_inode_alloc(mp, agcount);
@@ -239,11 +245,16 @@ xfs_initialize_perag(
mp->m_ag_prealloc_blocks = xfs_prealloc_blocks(mp);
return 0;
-out_unwind:
+out_hash_destroy:
xfs_buf_hash_destroy(pag);
+out_free_pag:
kmem_free(pag);
- for (; index > first_initialised; index--) {
+out_unwind_new_pags:
+ /* unwind any prior newly initialized pags */
+ for (index = first_initialised; index < agcount; index++) {
pag = radix_tree_delete(&mp->m_perag_tree, index);
+ if (!pag)
+ break;
xfs_buf_hash_destroy(pag);
kmem_free(pag);
}
@@ -424,7 +435,7 @@ STATIC void
xfs_set_maxicount(xfs_mount_t *mp)
{
xfs_sb_t *sbp = &(mp->m_sb);
- __uint64_t icount;
+ uint64_t icount;
if (sbp->sb_imax_pct) {
/*
@@ -490,7 +501,7 @@ xfs_set_low_space_thresholds(
int i;
for (i = 0; i < XFS_LOWSP_MAX; i++) {
- __uint64_t space = mp->m_sb.sb_dblocks;
+ uint64_t space = mp->m_sb.sb_dblocks;
do_div(space, 100);
mp->m_low_space[i] = space * (i + 1);
@@ -505,8 +516,7 @@ 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_sb.sb_inoalignmt >= xfs_icluster_size_fsb(mp))
mp->m_inoalign_mask = mp->m_sb.sb_inoalignmt - 1;
else
mp->m_inoalign_mask = 0;
@@ -587,10 +597,10 @@ xfs_mount_reset_sbqflags(
return xfs_sync_sb(mp, false);
}
-__uint64_t
+uint64_t
xfs_default_resblks(xfs_mount_t *mp)
{
- __uint64_t resblks;
+ uint64_t resblks;
/*
* We default to 5% or 8192 fsbs of space reserved, whichever is
@@ -601,7 +611,7 @@ xfs_default_resblks(xfs_mount_t *mp)
*/
resblks = mp->m_sb.sb_dblocks;
do_div(resblks, 20);
- resblks = min_t(__uint64_t, resblks, 8192);
+ resblks = min_t(uint64_t, resblks, 8192);
return resblks;
}
@@ -621,7 +631,7 @@ xfs_mountfs(
{
struct xfs_sb *sbp = &(mp->m_sb);
struct xfs_inode *rip;
- __uint64_t resblks;
+ uint64_t resblks;
uint quotamount = 0;
uint quotaflags = 0;
int error = 0;
@@ -709,10 +719,13 @@ xfs_mountfs(
if (error)
goto out_del_stats;
+ error = xfs_errortag_init(mp);
+ if (error)
+ goto out_remove_error_sysfs;
error = xfs_uuid_mount(mp);
if (error)
- goto out_remove_error_sysfs;
+ goto out_remove_errortag;
/*
* Set the minimum read and write sizes
@@ -782,7 +795,10 @@ xfs_mountfs(
* Copies the low order bits of the timestamp and the randomly
* set "sequence" number out of a UUID.
*/
- uuid_getnodeuniq(&sbp->sb_uuid, mp->m_fixedfsid);
+ mp->m_fixedfsid[0] =
+ (get_unaligned_be16(&sbp->sb_uuid.b[8]) << 16) |
+ get_unaligned_be16(&sbp->sb_uuid.b[4]);
+ mp->m_fixedfsid[1] = get_unaligned_be32(&sbp->sb_uuid.b[0]);
mp->m_dmevmask = 0; /* not persistent; set after each mount */
@@ -1031,6 +1047,8 @@ xfs_mountfs(
xfs_da_unmount(mp);
out_remove_uuid:
xfs_uuid_unmount(mp);
+ out_remove_errortag:
+ xfs_errortag_del(mp);
out_remove_error_sysfs:
xfs_error_sysfs_del(mp);
out_del_stats:
@@ -1049,7 +1067,7 @@ void
xfs_unmountfs(
struct xfs_mount *mp)
{
- __uint64_t resblks;
+ uint64_t resblks;
int error;
cancel_delayed_work_sync(&mp->m_eofblocks_work);
@@ -1073,6 +1091,13 @@ xfs_unmountfs(
xfs_log_force(mp, XFS_LOG_SYNC);
/*
+ * Wait for all busy extents to be freed, including completion of
+ * any discard operation.
+ */
+ xfs_extent_busy_wait_all(mp);
+ flush_workqueue(xfs_discard_wq);
+
+ /*
* We now need to tell the world we are unmounting. This will allow
* us to detect that the filesystem is going away and we should error
* out anything that we have been retrying in the background. This will
@@ -1127,10 +1152,11 @@ xfs_unmountfs(
xfs_uuid_unmount(mp);
#if defined(DEBUG)
- xfs_errortag_clearall(mp, 0);
+ xfs_errortag_clearall(mp);
#endif
xfs_free_perag(mp);
+ xfs_errortag_del(mp);
xfs_error_sysfs_del(mp);
xfs_sysfs_del(&mp->m_stats.xs_kobj);
xfs_sysfs_del(&mp->m_kobj);
@@ -1191,7 +1217,7 @@ xfs_mod_icount(
struct xfs_mount *mp,
int64_t delta)
{
- __percpu_counter_add(&mp->m_icount, delta, XFS_ICOUNT_BATCH);
+ percpu_counter_add_batch(&mp->m_icount, delta, XFS_ICOUNT_BATCH);
if (__percpu_counter_compare(&mp->m_icount, 0, XFS_ICOUNT_BATCH) < 0) {
ASSERT(0);
percpu_counter_add(&mp->m_icount, -delta);
@@ -1270,7 +1296,7 @@ xfs_mod_fdblocks(
else
batch = XFS_FDBLOCKS_BATCH;
- __percpu_counter_add(&mp->m_fdblocks, delta, batch);
+ percpu_counter_add_batch(&mp->m_fdblocks, delta, batch);
if (__percpu_counter_compare(&mp->m_fdblocks, mp->m_alloc_set_aside,
XFS_FDBLOCKS_BATCH) >= 0) {
/* we had space! */
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