Update Linux to v5.10.109
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz
Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 5a0ce0c..7110507 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -31,7 +31,7 @@
#include "xfs_reflink.h"
#include "xfs_extent_busy.h"
#include "xfs_health.h"
-
+#include "xfs_trace.h"
static DEFINE_MUTEX(xfs_uuid_table_mutex);
static int xfs_uuid_table_size;
@@ -80,9 +80,9 @@
}
if (hole < 0) {
- xfs_uuid_table = kmem_realloc(xfs_uuid_table,
+ xfs_uuid_table = krealloc(xfs_uuid_table,
(xfs_uuid_table_size + 1) * sizeof(*xfs_uuid_table),
- 0);
+ GFP_KERNEL | __GFP_NOFAIL);
hole = xfs_uuid_table_size++;
}
xfs_uuid_table[hole] = *uuid;
@@ -148,7 +148,6 @@
ASSERT(atomic_read(&pag->pag_ref) == 0);
xfs_iunlink_destroy(pag);
xfs_buf_hash_destroy(pag);
- mutex_destroy(&pag->pag_ici_reclaim_lock);
call_rcu(&pag->rcu_head, __xfs_free_perag);
}
}
@@ -202,7 +201,6 @@
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);
error = xfs_buf_hash_init(pag);
@@ -247,7 +245,6 @@
out_hash_destroy:
xfs_buf_hash_destroy(pag);
out_free_pag:
- mutex_destroy(&pag->pag_ici_reclaim_lock);
kmem_free(pag);
out_unwind_new_pags:
/* unwind any prior newly initialized pags */
@@ -257,7 +254,6 @@
break;
xfs_buf_hash_destroy(pag);
xfs_iunlink_destroy(pag);
- mutex_destroy(&pag->pag_ici_reclaim_lock);
kmem_free(pag);
}
return error;
@@ -315,7 +311,7 @@
/*
* Initialize the mount structure from the superblock.
*/
- xfs_sb_from_disk(sbp, XFS_BUF_TO_SBP(bp));
+ xfs_sb_from_disk(sbp, bp->b_addr);
/*
* If we haven't validated the superblock, do so now before we try
@@ -365,108 +361,122 @@
}
/*
- * Update alignment values based on mount options and sb values
+ * If the sunit/swidth change would move the precomputed root inode value, we
+ * must reject the ondisk change because repair will stumble over that.
+ * However, we allow the mount to proceed because we never rejected this
+ * combination before. Returns true to update the sb, false otherwise.
+ */
+static inline int
+xfs_check_new_dalign(
+ struct xfs_mount *mp,
+ int new_dalign,
+ bool *update_sb)
+{
+ struct xfs_sb *sbp = &mp->m_sb;
+ xfs_ino_t calc_ino;
+
+ calc_ino = xfs_ialloc_calc_rootino(mp, new_dalign);
+ trace_xfs_check_new_dalign(mp, new_dalign, calc_ino);
+
+ if (sbp->sb_rootino == calc_ino) {
+ *update_sb = true;
+ return 0;
+ }
+
+ xfs_warn(mp,
+"Cannot change stripe alignment; would require moving root inode.");
+
+ /*
+ * XXX: Next time we add a new incompat feature, this should start
+ * returning -EINVAL to fail the mount. Until then, spit out a warning
+ * that we're ignoring the administrator's instructions.
+ */
+ xfs_warn(mp, "Skipping superblock stripe alignment update.");
+ *update_sb = false;
+ return 0;
+}
+
+/*
+ * If we were provided with new sunit/swidth values as mount options, make sure
+ * that they pass basic alignment and superblock feature checks, and convert
+ * them into the same units (FSB) that everything else expects. This step
+ * /must/ be done before computing the inode geometry.
*/
STATIC int
-xfs_update_alignment(xfs_mount_t *mp)
+xfs_validate_new_dalign(
+ struct xfs_mount *mp)
{
- xfs_sb_t *sbp = &(mp->m_sb);
+ if (mp->m_dalign == 0)
+ return 0;
- if (mp->m_dalign) {
+ /*
+ * If stripe unit and stripe width are not multiples
+ * of the fs blocksize turn off alignment.
+ */
+ if ((BBTOB(mp->m_dalign) & mp->m_blockmask) ||
+ (BBTOB(mp->m_swidth) & mp->m_blockmask)) {
+ xfs_warn(mp,
+ "alignment check failed: sunit/swidth vs. blocksize(%d)",
+ mp->m_sb.sb_blocksize);
+ return -EINVAL;
+ } else {
/*
- * If stripe unit and stripe width are not multiples
- * of the fs blocksize turn off alignment.
+ * Convert the stripe unit and width to FSBs.
*/
- if ((BBTOB(mp->m_dalign) & mp->m_blockmask) ||
- (BBTOB(mp->m_swidth) & mp->m_blockmask)) {
+ mp->m_dalign = XFS_BB_TO_FSBT(mp, mp->m_dalign);
+ if (mp->m_dalign && (mp->m_sb.sb_agblocks % mp->m_dalign)) {
xfs_warn(mp,
- "alignment check failed: sunit/swidth vs. blocksize(%d)",
- sbp->sb_blocksize);
+ "alignment check failed: sunit/swidth vs. agsize(%d)",
+ mp->m_sb.sb_agblocks);
return -EINVAL;
- } else {
- /*
- * Convert the stripe unit and width to FSBs.
- */
- mp->m_dalign = XFS_BB_TO_FSBT(mp, mp->m_dalign);
- if (mp->m_dalign && (sbp->sb_agblocks % mp->m_dalign)) {
- xfs_warn(mp,
- "alignment check failed: sunit/swidth vs. agsize(%d)",
- sbp->sb_agblocks);
- return -EINVAL;
- } else if (mp->m_dalign) {
- mp->m_swidth = XFS_BB_TO_FSBT(mp, mp->m_swidth);
- } else {
- xfs_warn(mp,
- "alignment check failed: sunit(%d) less than bsize(%d)",
- mp->m_dalign, sbp->sb_blocksize);
- return -EINVAL;
- }
- }
-
- /*
- * Update superblock with new values
- * and log changes
- */
- if (xfs_sb_version_hasdalign(sbp)) {
- if (sbp->sb_unit != mp->m_dalign) {
- sbp->sb_unit = mp->m_dalign;
- mp->m_update_sb = true;
- }
- if (sbp->sb_width != mp->m_swidth) {
- sbp->sb_width = mp->m_swidth;
- mp->m_update_sb = true;
- }
+ } else if (mp->m_dalign) {
+ mp->m_swidth = XFS_BB_TO_FSBT(mp, mp->m_swidth);
} else {
xfs_warn(mp,
- "cannot change alignment: superblock does not support data alignment");
+ "alignment check failed: sunit(%d) less than bsize(%d)",
+ mp->m_dalign, mp->m_sb.sb_blocksize);
return -EINVAL;
}
- } else if ((mp->m_flags & XFS_MOUNT_NOALIGN) != XFS_MOUNT_NOALIGN &&
- xfs_sb_version_hasdalign(&mp->m_sb)) {
- mp->m_dalign = sbp->sb_unit;
- mp->m_swidth = sbp->sb_width;
+ }
+
+ if (!xfs_sb_version_hasdalign(&mp->m_sb)) {
+ xfs_warn(mp,
+"cannot change alignment: superblock does not support data alignment");
+ return -EINVAL;
}
return 0;
}
-/*
- * 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)
+/* Update alignment values based on mount options and sb values. */
+STATIC int
+xfs_update_alignment(
+ struct xfs_mount *mp)
{
- xfs_sb_t *sbp = &(mp->m_sb);
- int readio_log, writeio_log;
+ struct xfs_sb *sbp = &mp->m_sb;
- if (!(mp->m_flags & XFS_MOUNT_DFLT_IOSIZE)) {
- if (mp->m_flags & XFS_MOUNT_WSYNC) {
- readio_log = XFS_WSYNC_READIO_LOG;
- writeio_log = XFS_WSYNC_WRITEIO_LOG;
- } else {
- readio_log = XFS_READIO_LOG_LARGE;
- writeio_log = XFS_WRITEIO_LOG_LARGE;
- }
- } else {
- readio_log = mp->m_readio_log;
- writeio_log = mp->m_writeio_log;
+ if (mp->m_dalign) {
+ bool update_sb;
+ int error;
+
+ if (sbp->sb_unit == mp->m_dalign &&
+ sbp->sb_width == mp->m_swidth)
+ return 0;
+
+ error = xfs_check_new_dalign(mp, mp->m_dalign, &update_sb);
+ if (error || !update_sb)
+ return error;
+
+ sbp->sb_unit = mp->m_dalign;
+ sbp->sb_width = mp->m_swidth;
+ mp->m_update_sb = true;
+ } else if ((mp->m_flags & XFS_MOUNT_NOALIGN) != XFS_MOUNT_NOALIGN &&
+ xfs_sb_version_hasdalign(&mp->m_sb)) {
+ mp->m_dalign = sbp->sb_unit;
+ mp->m_swidth = sbp->sb_width;
}
- if (sbp->sb_blocklog > readio_log) {
- mp->m_readio_log = sbp->sb_blocklog;
- } else {
- mp->m_readio_log = readio_log;
- }
- mp->m_readio_blocks = 1 << (mp->m_readio_log - sbp->sb_blocklog);
- if (sbp->sb_blocklog > writeio_log) {
- mp->m_writeio_log = sbp->sb_blocklog;
- } else {
- mp->m_writeio_log = writeio_log;
- }
- mp->m_writeio_blocks = 1 << (mp->m_writeio_log - sbp->sb_blocklog);
+ return 0;
}
/*
@@ -692,12 +702,12 @@
}
/*
- * 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.
+ * If we were given new sunit/swidth options, do some basic validation
+ * checks and convert the incore dalign and swidth values to the
+ * same units (FSB) that everything else uses. This /must/ happen
+ * before computing the inode geometry.
*/
- error = xfs_update_alignment(mp);
+ error = xfs_validate_new_dalign(mp);
if (error)
goto out;
@@ -708,10 +718,22 @@
xfs_rmapbt_compute_maxlevels(mp);
xfs_refcountbt_compute_maxlevels(mp);
+ /*
+ * 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. Note that
+ * we must compute the free space and rmap btree geometry before doing
+ * this.
+ */
+ error = xfs_update_alignment(mp);
+ if (error)
+ goto out;
+
/* enable fail_at_unmount as default */
mp->m_fail_unmount = true;
- error = xfs_sysfs_init(&mp->m_kobj, &xfs_mp_ktype, NULL, mp->m_fsname);
+ error = xfs_sysfs_init(&mp->m_kobj, &xfs_mp_ktype,
+ NULL, mp->m_super->s_id);
if (error)
goto out;
@@ -733,9 +755,12 @@
goto out_remove_errortag;
/*
- * Set the minimum read and write sizes
+ * Update the preferred write size based on the information from the
+ * on-disk superblock.
*/
- xfs_set_rw_sizes(mp);
+ mp->m_allocsize_log =
+ max_t(uint32_t, sbp->sb_blocklog, mp->m_allocsize_log);
+ mp->m_allocsize_blocks = 1U << (mp->m_allocsize_log - sbp->sb_blocklog);
/* set the low space thresholds for dynamic preallocation */
xfs_set_low_space_thresholds(mp);
@@ -801,9 +826,8 @@
goto out_free_dir;
}
- if (!sbp->sb_logblocks) {
+ if (XFS_IS_CORRUPT(mp, !sbp->sb_logblocks)) {
xfs_warn(mp, "no log defined");
- XFS_ERROR_REPORT("xfs_mountfs", XFS_ERRLEVEL_LOW, mp);
error = -EFSCORRUPTED;
goto out_free_perag;
}
@@ -841,12 +865,10 @@
ASSERT(rip != NULL);
- if (unlikely(!S_ISDIR(VFS_I(rip)->i_mode))) {
+ if (XFS_IS_CORRUPT(mp, !S_ISDIR(VFS_I(rip)->i_mode))) {
xfs_warn(mp, "corrupted root inode %llu: not a directory",
(unsigned long long)rip->i_ino);
xfs_iunlock(rip, XFS_ILOCK_EXCL);
- XFS_ERROR_REPORT("xfs_mountfs_int(2)", XFS_ERRLEVEL_LOW,
- mp);
error = -EFSCORRUPTED;
goto out_rele_rip;
}
@@ -994,7 +1016,7 @@
* quota inodes.
*/
cancel_delayed_work_sync(&mp->m_reclaim_work);
- xfs_reclaim_inodes(mp, SYNC_WAIT);
+ xfs_reclaim_inodes(mp);
xfs_health_unmount(mp);
out_log_dealloc:
mp->m_flags |= XFS_MOUNT_UNMOUNTING;
@@ -1042,11 +1064,12 @@
* We can potentially deadlock here if we have an inode cluster
* that has been freed has its buffer still pinned in memory because
* the transaction is still sitting in a iclog. The stale inodes
- * on that buffer will have their flush locks held until the
- * transaction hits the disk and the callbacks run. the inode
- * flush takes the flush lock unconditionally and with nothing to
- * push out the iclog we will never get that unlocked. hence we
- * need to force the log first.
+ * on that buffer will be pinned to the buffer until the
+ * transaction hits the disk and the callbacks run. Pushing the AIL will
+ * skip the stale inodes and may never see the pinned buffer, so
+ * nothing will push out the iclog and unpin the buffer. Hence we
+ * need to force the log here to ensure all items are flushed into the
+ * AIL before we go any further.
*/
xfs_log_force(mp, XFS_LOG_SYNC);
@@ -1071,13 +1094,12 @@
xfs_ail_push_all_sync(mp->m_ail);
/*
- * And reclaim all inodes. At this point there should be no dirty
- * 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.
+ * Reclaim all inodes. At this point there should be no dirty inodes and
+ * none should be pinned or locked. Stop background inode reclaim here
+ * if it is still running.
*/
cancel_delayed_work_sync(&mp->m_reclaim_work);
- xfs_reclaim_inodes(mp, SYNC_WAIT);
+ xfs_reclaim_inodes(mp);
xfs_health_unmount(mp);
xfs_qm_unmount(mp);
@@ -1169,39 +1191,6 @@
}
/*
- * Deltas for the inode count are +/-64, hence we use a large batch size
- * of 128 so we don't need to take the counter lock on every update.
- */
-#define XFS_ICOUNT_BATCH 128
-int
-xfs_mod_icount(
- struct xfs_mount *mp,
- int64_t delta)
-{
- 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);
- return -EINVAL;
- }
- return 0;
-}
-
-int
-xfs_mod_ifree(
- struct xfs_mount *mp,
- int64_t delta)
-{
- percpu_counter_add(&mp->m_ifree, delta);
- if (percpu_counter_compare(&mp->m_ifree, 0) < 0) {
- ASSERT(0);
- percpu_counter_add(&mp->m_ifree, -delta);
- return -EINVAL;
- }
- return 0;
-}
-
-/*
* Deltas for the block count can vary from 1 to very large, but lock contention
* only occurs on frequent small block count updates such as in the delayed
* allocation path for buffered writes (page a time updates). Hence we set
@@ -1279,10 +1268,9 @@
spin_unlock(&mp->m_sb_lock);
return 0;
}
- printk_once(KERN_WARNING
- "Filesystem \"%s\": reserve blocks depleted! "
- "Consider increasing reserve pool size.",
- mp->m_fsname);
+ xfs_warn_once(mp,
+"Reserve blocks depleted! Consider increasing reserve pool size.");
+
fdblocks_enospc:
spin_unlock(&mp->m_sb_lock);
return -ENOSPC;
@@ -1307,23 +1295,6 @@
}
/*
- * xfs_getsb() is called to obtain the buffer for the superblock.
- * The buffer is returned locked and read in from disk.
- * The buffer should be released with a call to xfs_brelse().
- */
-struct xfs_buf *
-xfs_getsb(
- struct xfs_mount *mp)
-{
- struct xfs_buf *bp = mp->m_sb_bp;
-
- xfs_buf_lock(bp);
- xfs_buf_hold(bp);
- ASSERT(bp->b_flags & XBF_DONE);
- return bp;
-}
-
-/*
* Used to free the superblock along various error paths.
*/
void