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| author | Al Viro <viro@zeniv.linux.org.uk> | 2025-08-27 20:37:12 +0300 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2025-09-17 22:58:29 +0300 |
| commit | 3371fa2f27134fc4ec7d40b2ae7b9e92c3b2527e (patch) | |
| tree | aaff2601103778dd89a12d4c7f8e843f01d186ab /include | |
| parent | 09a1b33c080f6ac700fadc67c8471e67bf75fda4 (diff) | |
| download | linux-3371fa2f27134fc4ec7d40b2ae7b9e92c3b2527e.tar.xz | |
struct mount: relocate MNT_WRITE_HOLD bit
... from ->mnt_flags to LSB of ->mnt_pprev_for_sb.
This is safe - we always set and clear it within the same mount_lock
scope, so we won't interfere with list operations - traversals are
always forward, so they don't even look at ->mnt_prev_for_sb and
both insertions and removals are in mount_lock scopes of their own,
so that bit will be clear in *all* mount instances during those.
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mount.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/mount.h b/include/linux/mount.h index 18e4b97f8a98..85e97b9340ff 100644 --- a/include/linux/mount.h +++ b/include/linux/mount.h @@ -33,7 +33,6 @@ enum mount_flags { MNT_NOSYMFOLLOW = 0x80, MNT_SHRINKABLE = 0x100, - MNT_WRITE_HOLD = 0x200, MNT_INTERNAL = 0x4000, @@ -52,7 +51,7 @@ enum mount_flags { | MNT_READONLY | MNT_NOSYMFOLLOW, MNT_ATIME_MASK = MNT_NOATIME | MNT_NODIRATIME | MNT_RELATIME, - MNT_INTERNAL_FLAGS = MNT_WRITE_HOLD | MNT_INTERNAL | MNT_DOOMED | + MNT_INTERNAL_FLAGS = MNT_INTERNAL | MNT_DOOMED | MNT_SYNC_UMOUNT | MNT_LOCKED }; |