5.15-stable patches

added patches:
	ext4-only-check-dquot_initialize_needed-when-debugging.patch
	revert-ext4-don-t-clear-sb_rdonly-when-remounting-r-w-until-quota-is-re-enabled.patch

diff --git a/queue-5.15/ext4-only-check-dquot_initialize_needed-when-debugging.patch b/queue-5.15/ext4-only-check-dquot_initialize_needed-when-debugging.patch
new file mode 100644 (file)
index 0000000..380aee6
--- /dev/null
+++ b/queue-5.15/ext4-only-check-dquot_initialize_needed-when-debugging.patch
@@ -0,0 +1,47 @@
+From dea9d8f7643fab07bf89a1155f1f94f37d096a5e Mon Sep 17 00:00:00 2001
+From: Theodore Ts'o <tytso@mit.edu>
+Date: Thu, 8 Jun 2023 10:06:40 -0400
+Subject: ext4: only check dquot_initialize_needed() when debugging
+
+From: Theodore Ts'o <tytso@mit.edu>
+
+commit dea9d8f7643fab07bf89a1155f1f94f37d096a5e upstream.
+
+ext4_xattr_block_set() relies on its caller to call dquot_initialize()
+on the inode.  To assure that this has happened there are WARN_ON
+checks.  Unfortunately, this is subject to false positives if there is
+an antagonist thread which is flipping the file system at high rates
+between r/o and rw.  So only do the check if EXT4_XATTR_DEBUG is
+enabled.
+
+Link: https://lore.kernel.org/r/20230608044056.GA1418535@mit.edu
+Signed-off-by: Theodore Ts'o <tytso@mit.edu>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ fs/ext4/xattr.c |    6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+--- a/fs/ext4/xattr.c
++++ b/fs/ext4/xattr.c
+@@ -2006,8 +2006,9 @@ inserted:
+                       else {
+                               u32 ref;
+ 
++#ifdef EXT4_XATTR_DEBUG
+                               WARN_ON_ONCE(dquot_initialize_needed(inode));
+-
++#endif
+                               /* The old block is released after updating
+                                  the inode. */
+                               error = dquot_alloc_block(inode,
+@@ -2070,8 +2071,9 @@ inserted:
+                       /* We need to allocate a new block */
+                       ext4_fsblk_t goal, block;
+ 
++#ifdef EXT4_XATTR_DEBUG
+                       WARN_ON_ONCE(dquot_initialize_needed(inode));
+-
++#endif
+                       goal = ext4_group_first_block_no(sb,
+                                               EXT4_I(inode)->i_block_group);
+                       block = ext4_new_meta_blocks(handle, inode, goal, 0,

diff --git a/queue-5.15/revert-ext4-don-t-clear-sb_rdonly-when-remounting-r-w-until-quota-is-re-enabled.patch b/queue-5.15/revert-ext4-don-t-clear-sb_rdonly-when-remounting-r-w-until-quota-is-re-enabled.patch
new file mode 100644 (file)
index 0000000..4d1aea6
--- /dev/null
+++ b/queue-5.15/revert-ext4-don-t-clear-sb_rdonly-when-remounting-r-w-until-quota-is-re-enabled.patch
@@ -0,0 +1,47 @@
+From 1b29243933098cdbc31b579b5616e183b4275e2f Mon Sep 17 00:00:00 2001
+From: Theodore Ts'o <tytso@mit.edu>
+Date: Thu, 8 Jun 2023 09:57:04 -0400
+Subject: Revert "ext4: don't clear SB_RDONLY when remounting r/w until quota is re-enabled"
+
+From: Theodore Ts'o <tytso@mit.edu>
+
+commit 1b29243933098cdbc31b579b5616e183b4275e2f upstream.
+
+This reverts commit a44be64bbecb15a452496f60db6eacfee2b59c79.
+
+Link: https://lore.kernel.org/r/653b3359-2005-21b1-039d-c55ca4cffdcc@gmail.com
+Signed-off-by: Theodore Ts'o <tytso@mit.edu>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ fs/ext4/super.c |    6 +-----
+ 1 file changed, 1 insertion(+), 5 deletions(-)
+
+--- a/fs/ext4/super.c
++++ b/fs/ext4/super.c
+@@ -5748,7 +5748,6 @@ static int ext4_remount(struct super_blo
+       struct ext4_mount_options old_opts;
+       ext4_group_t g;
+       int err = 0;
+-      int enable_rw = 0;
+ #ifdef CONFIG_QUOTA
+       int enable_quota = 0;
+       int i, j;
+@@ -5949,7 +5948,7 @@ static int ext4_remount(struct super_blo
+                       if (err)
+                               goto restore_opts;
+ 
+-                      enable_rw = 1;
++                      sb->s_flags &= ~SB_RDONLY;
+                       if (ext4_has_feature_mmp(sb)) {
+                               err = ext4_multi_mount_protect(sb,
+                                               le64_to_cpu(es->s_mmp_block));
+@@ -5996,9 +5995,6 @@ static int ext4_remount(struct super_blo
+       if (!test_opt(sb, BLOCK_VALIDITY) && sbi->s_system_blks)
+               ext4_release_system_zone(sb);
+ 
+-      if (enable_rw)
+-              sb->s_flags &= ~SB_RDONLY;
+-
+       /*
+        * Reinitialize lazy itable initialization thread based on
+        * current settings

diff --git a/queue-5.15/series b/queue-5.15/series
index 8ac89e645a1a5d5f0178dd7e582847eb11a1ea09..a96c4e91763ce900ca156b87f2c713d9e738b55d 100644 (file)
--- a/queue-5.15/series
+++ b/queue-5.15/series
@@ -84,3 +84,5 @@ riscv-fix-kprobe-__user-string-arg-print-fault-issue.patch
 vduse-avoid-empty-string-for-dev-name.patch
 vhost-support-packed-when-setting-getting-vring_base.patch
 vhost_vdpa-support-packed-when-setting-getting-vring.patch
+revert-ext4-don-t-clear-sb_rdonly-when-remounting-r-w-until-quota-is-re-enabled.patch
+ext4-only-check-dquot_initialize_needed-when-debugging.patch