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Diffstat (limited to 'fs/xfs/xfs_mount.c')
-rw-r--r--fs/xfs/xfs_mount.c201
1 files changed, 104 insertions, 97 deletions
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 536021fb3d4..7d6df7c00c3 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -42,6 +42,7 @@
#include "xfs_fsops.h"
#include "xfs_utils.h"
#include "xfs_trace.h"
+#include "xfs_icache.h"
#ifdef HAVE_PERCPU_SB
@@ -303,9 +304,8 @@ STATIC int
xfs_mount_validate_sb(
xfs_mount_t *mp,
xfs_sb_t *sbp,
- int flags)
+ bool check_inprogress)
{
- int loud = !(flags & XFS_MFSI_QUIET);
/*
* If the log device and data device have the
@@ -315,21 +315,18 @@ xfs_mount_validate_sb(
* a volume filesystem in a non-volume manner.
*/
if (sbp->sb_magicnum != XFS_SB_MAGIC) {
- if (loud)
- xfs_warn(mp, "bad magic number");
+ xfs_warn(mp, "bad magic number");
return XFS_ERROR(EWRONGFS);
}
if (!xfs_sb_good_version(sbp)) {
- if (loud)
- xfs_warn(mp, "bad version");
+ xfs_warn(mp, "bad version");
return XFS_ERROR(EWRONGFS);
}
if (unlikely(
sbp->sb_logstart == 0 && mp->m_logdev_targp == mp->m_ddev_targp)) {
- if (loud)
- xfs_warn(mp,
+ xfs_warn(mp,
"filesystem is marked as having an external log; "
"specify logdev on the mount command line.");
return XFS_ERROR(EINVAL);
@@ -337,8 +334,7 @@ xfs_mount_validate_sb(
if (unlikely(
sbp->sb_logstart != 0 && mp->m_logdev_targp != mp->m_ddev_targp)) {
- if (loud)
- xfs_warn(mp,
+ xfs_warn(mp,
"filesystem is marked as having an internal log; "
"do not specify logdev on the mount command line.");
return XFS_ERROR(EINVAL);
@@ -372,8 +368,7 @@ xfs_mount_validate_sb(
sbp->sb_dblocks == 0 ||
sbp->sb_dblocks > XFS_MAX_DBLOCKS(sbp) ||
sbp->sb_dblocks < XFS_MIN_DBLOCKS(sbp))) {
- if (loud)
- XFS_CORRUPTION_ERROR("SB sanity check failed",
+ XFS_CORRUPTION_ERROR("SB sanity check failed",
XFS_ERRLEVEL_LOW, mp, sbp);
return XFS_ERROR(EFSCORRUPTED);
}
@@ -382,12 +377,10 @@ xfs_mount_validate_sb(
* Until this is fixed only page-sized or smaller data blocks work.
*/
if (unlikely(sbp->sb_blocksize > PAGE_SIZE)) {
- if (loud) {
- xfs_warn(mp,
+ xfs_warn(mp,
"File system with blocksize %d bytes. "
"Only pagesize (%ld) or less will currently work.",
sbp->sb_blocksize, PAGE_SIZE);
- }
return XFS_ERROR(ENOSYS);
}
@@ -401,23 +394,20 @@ xfs_mount_validate_sb(
case 2048:
break;
default:
- if (loud)
- xfs_warn(mp, "inode size of %d bytes not supported",
+ xfs_warn(mp, "inode size of %d bytes not supported",
sbp->sb_inodesize);
return XFS_ERROR(ENOSYS);
}
if (xfs_sb_validate_fsb_count(sbp, sbp->sb_dblocks) ||
xfs_sb_validate_fsb_count(sbp, sbp->sb_rblocks)) {
- if (loud)
- xfs_warn(mp,
+ xfs_warn(mp,
"file system too large to be mounted on this system.");
return XFS_ERROR(EFBIG);
}
- if (unlikely(sbp->sb_inprogress)) {
- if (loud)
- xfs_warn(mp, "file system busy");
+ if (check_inprogress && sbp->sb_inprogress) {
+ xfs_warn(mp, "Offline file system operation in progress!");
return XFS_ERROR(EFSCORRUPTED);
}
@@ -425,9 +415,7 @@ xfs_mount_validate_sb(
* Version 1 directory format has never worked on Linux.
*/
if (unlikely(!xfs_sb_version_hasdirv2(sbp))) {
- if (loud)
- xfs_warn(mp,
- "file system using version 1 directory format");
+ xfs_warn(mp, "file system using version 1 directory format");
return XFS_ERROR(ENOSYS);
}
@@ -440,7 +428,7 @@ xfs_initialize_perag(
xfs_agnumber_t agcount,
xfs_agnumber_t *maxagi)
{
- xfs_agnumber_t index, max_metadata;
+ xfs_agnumber_t index;
xfs_agnumber_t first_initialised = 0;
xfs_perag_t *pag;
xfs_agino_t agino;
@@ -500,43 +488,10 @@ xfs_initialize_perag(
else
mp->m_flags &= ~XFS_MOUNT_32BITINODES;
- if (mp->m_flags & XFS_MOUNT_32BITINODES) {
- /*
- * Calculate how much should be reserved for inodes to meet
- * the max inode percentage.
- */
- if (mp->m_maxicount) {
- __uint64_t icount;
-
- icount = sbp->sb_dblocks * sbp->sb_imax_pct;
- do_div(icount, 100);
- icount += sbp->sb_agblocks - 1;
- do_div(icount, sbp->sb_agblocks);
- max_metadata = icount;
- } else {
- max_metadata = agcount;
- }
-
- for (index = 0; index < agcount; index++) {
- ino = XFS_AGINO_TO_INO(mp, index, agino);
- if (ino > XFS_MAXINUMBER_32) {
- index++;
- break;
- }
-
- pag = xfs_perag_get(mp, index);
- pag->pagi_inodeok = 1;
- if (index < max_metadata)
- pag->pagf_metadata = 1;
- xfs_perag_put(pag);
- }
- } else {
- for (index = 0; index < agcount; index++) {
- pag = xfs_perag_get(mp, index);
- pag->pagi_inodeok = 1;
- xfs_perag_put(pag);
- }
- }
+ if (mp->m_flags & XFS_MOUNT_32BITINODES)
+ index = xfs_set_inode32(mp);
+ else
+ index = xfs_set_inode64(mp);
if (maxagi)
*maxagi = index;
@@ -553,11 +508,9 @@ out_unwind:
void
xfs_sb_from_disk(
- struct xfs_mount *mp,
+ struct xfs_sb *to,
xfs_dsb_t *from)
{
- struct xfs_sb *to = &mp->m_sb;
-
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);
@@ -659,6 +612,72 @@ xfs_sb_to_disk(
}
}
+static void
+xfs_sb_verify(
+ struct xfs_buf *bp)
+{
+ struct xfs_mount *mp = bp->b_target->bt_mount;
+ struct xfs_sb sb;
+ int error;
+
+ xfs_sb_from_disk(&sb, XFS_BUF_TO_SBP(bp));
+
+ /*
+ * Only check the in progress field for the primary superblock as
+ * mkfs.xfs doesn't clear it from secondary superblocks.
+ */
+ error = xfs_mount_validate_sb(mp, &sb, bp->b_bn == XFS_SB_DADDR);
+ if (error)
+ xfs_buf_ioerror(bp, error);
+}
+
+static void
+xfs_sb_read_verify(
+ struct xfs_buf *bp)
+{
+ xfs_sb_verify(bp);
+}
+
+/*
+ * We may be probed for a filesystem match, so we may not want to emit
+ * messages when the superblock buffer is not actually an XFS superblock.
+ * If we find an XFS superblock, the run a normal, noisy mount because we are
+ * really going to mount it and want to know about errors.
+ */
+static void
+xfs_sb_quiet_read_verify(
+ struct xfs_buf *bp)
+{
+ struct xfs_sb sb;
+
+ xfs_sb_from_disk(&sb, XFS_BUF_TO_SBP(bp));
+
+ if (sb.sb_magicnum == XFS_SB_MAGIC) {
+ /* XFS filesystem, verify noisily! */
+ xfs_sb_read_verify(bp);
+ return;
+ }
+ /* quietly fail */
+ xfs_buf_ioerror(bp, EWRONGFS);
+}
+
+static void
+xfs_sb_write_verify(
+ struct xfs_buf *bp)
+{
+ xfs_sb_verify(bp);
+}
+
+const struct xfs_buf_ops xfs_sb_buf_ops = {
+ .verify_read = xfs_sb_read_verify,
+ .verify_write = xfs_sb_write_verify,
+};
+
+static const struct xfs_buf_ops xfs_sb_quiet_buf_ops = {
+ .verify_read = xfs_sb_quiet_read_verify,
+ .verify_write = xfs_sb_write_verify,
+};
+
/*
* xfs_readsb
*
@@ -684,26 +703,27 @@ xfs_readsb(xfs_mount_t *mp, int flags)
reread:
bp = xfs_buf_read_uncached(mp->m_ddev_targp, XFS_SB_DADDR,
- BTOBB(sector_size), 0);
+ BTOBB(sector_size), 0,
+ loud ? &xfs_sb_buf_ops
+ : &xfs_sb_quiet_buf_ops);
if (!bp) {
if (loud)
xfs_warn(mp, "SB buffer read failed");
return EIO;
}
-
- /*
- * Initialize the mount structure from the superblock.
- * But first do some basic consistency checking.
- */
- xfs_sb_from_disk(mp, XFS_BUF_TO_SBP(bp));
- error = xfs_mount_validate_sb(mp, &(mp->m_sb), flags);
- if (error) {
+ if (bp->b_error) {
+ error = bp->b_error;
if (loud)
xfs_warn(mp, "SB validate failed");
goto release_buf;
}
/*
+ * Initialize the mount structure from the superblock.
+ */
+ xfs_sb_from_disk(&mp->m_sb, XFS_BUF_TO_SBP(bp));
+
+ /*
* We must be able to do sector-sized and sector-aligned IO.
*/
if (sector_size > mp->m_sb.sb_sectsize) {
@@ -1034,7 +1054,7 @@ xfs_check_sizes(xfs_mount_t *mp)
}
bp = xfs_buf_read_uncached(mp->m_ddev_targp,
d - XFS_FSS_TO_BB(mp, 1),
- XFS_FSS_TO_BB(mp, 1), 0);
+ XFS_FSS_TO_BB(mp, 1), 0, NULL);
if (!bp) {
xfs_warn(mp, "last sector read failed");
return EIO;
@@ -1049,7 +1069,7 @@ xfs_check_sizes(xfs_mount_t *mp)
}
bp = xfs_buf_read_uncached(mp->m_logdev_targp,
d - XFS_FSB_TO_BB(mp, 1),
- XFS_FSB_TO_BB(mp, 1), 0);
+ XFS_FSB_TO_BB(mp, 1), 0, NULL);
if (!bp) {
xfs_warn(mp, "log device read failed");
return EIO;
@@ -1200,8 +1220,6 @@ xfs_mountfs(
xfs_set_maxicount(mp);
- mp->m_maxioffset = xfs_max_file_offset(sbp->sb_blocklog);
-
error = xfs_uuid_mount(mp);
if (error)
goto out;
@@ -1462,6 +1480,8 @@ xfs_unmountfs(
__uint64_t resblks;
int error;
+ cancel_delayed_work_sync(&mp->m_eofblocks_work);
+
xfs_qm_unmount_quotas(mp);
xfs_rtunmount_inodes(mp);
IRELE(mp->m_rootip);
@@ -1485,21 +1505,16 @@ xfs_unmountfs(
/*
* And reclaim all inodes. At this point there should be no dirty
- * inode, and none should be pinned or locked, but use synchronous
- * reclaim just to be sure.
+ * inodes and none should be pinned or locked, but use synchronous
+ * reclaim just to be sure. We can stop background inode reclaim
+ * here as well if it is still running.
*/
+ cancel_delayed_work_sync(&mp->m_reclaim_work);
xfs_reclaim_inodes(mp, SYNC_WAIT);
xfs_qm_unmount(mp);
/*
- * Flush out the log synchronously so that we know for sure
- * that nothing is pinned. This is important because bflush()
- * will skip pinned buffers.
- */
- xfs_log_force(mp, XFS_LOG_SYNC);
-
- /*
* Unreserve any blocks we have so that when we unmount we don't account
* the reserved free space as used. This is really only necessary for
* lazy superblock counting because it trusts the incore superblock
@@ -1524,14 +1539,6 @@ xfs_unmountfs(
xfs_warn(mp, "Unable to update superblock counters. "
"Freespace may not be correct on next mount.");
- /*
- * At this point we might have modified the superblock again and thus
- * added an item to the AIL, thus flush it again.
- */
- xfs_ail_push_all_sync(mp->m_ail);
- xfs_wait_buftarg(mp->m_ddev_targp);
-
- xfs_log_unmount_write(mp);
xfs_log_unmount(mp);
xfs_uuid_unmount(mp);
@@ -1544,7 +1551,7 @@ xfs_unmountfs(
int
xfs_fs_writable(xfs_mount_t *mp)
{
- return !(xfs_test_for_freeze(mp) || XFS_FORCED_SHUTDOWN(mp) ||
+ return !(mp->m_super->s_writers.frozen || XFS_FORCED_SHUTDOWN(mp) ||
(mp->m_flags & XFS_MOUNT_RDONLY));
}