5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jan Kara jack@suse.cz
commit 22b8d707b07e6e06f50fe1d9ca8756e1f894eb0d upstream.
'abort' mount option is the only mount option that has special handling and sets a bit in sbi->s_mount_flags. There is not strong reason for that so just simplify the code and make 'abort' set a bit in sbi->s_mount_opt2 as any other mount option. This simplifies the code and will allow us to drop EXT4_MF_FS_ABORTED completely in the following patch.
Signed-off-by: Jan Kara jack@suse.cz Link: https://lore.kernel.org/r/20230616165109.21695-4-jack@suse.cz Signed-off-by: Theodore Ts'o tytso@mit.edu Stable-dep-of: 76486b104168 ("ext4: avoid remount errors with 'abort' mount option") Signed-off-by: Amir Goldstein amir73il@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/ext4/ext4.h | 1 + fs/ext4/super.c | 6 ++---- 2 files changed, 3 insertions(+), 4 deletions(-)
--- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -1255,6 +1255,7 @@ struct ext4_inode_info { #define EXT4_MOUNT2_MB_OPTIMIZE_SCAN 0x00000080 /* Optimize group * scanning in mballoc */ +#define EXT4_MOUNT2_ABORT 0x00000100 /* Abort filesystem */
#define clear_opt(sb, opt) EXT4_SB(sb)->s_mount_opt &= \ ~EXT4_MOUNT_##opt --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -2023,6 +2023,7 @@ static const struct mount_opts { MOPT_SET | MOPT_2 | MOPT_EXT4_ONLY}, {Opt_fc_debug_max_replay, 0, MOPT_GTE0}, #endif + {Opt_abort, EXT4_MOUNT2_ABORT, MOPT_SET | MOPT_2}, {Opt_err, 0, 0} };
@@ -2143,9 +2144,6 @@ static int handle_mount_opt(struct super case Opt_removed: ext4_msg(sb, KERN_WARNING, "Ignoring removed %s option", opt); return 1; - case Opt_abort: - ext4_set_mount_flag(sb, EXT4_MF_FS_ABORTED); - return 1; case Opt_i_version: sb->s_flags |= SB_I_VERSION; return 1; @@ -5851,7 +5849,7 @@ static int ext4_remount(struct super_blo goto restore_opts; }
- if (ext4_test_mount_flag(sb, EXT4_MF_FS_ABORTED)) + if (test_opt2(sb, ABORT)) ext4_abort(sb, ESHUTDOWN, "Abort forced by user");
sb->s_flags = (sb->s_flags & ~SB_POSIXACL) |