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authorLinus Torvalds <torvalds@linux-foundation.org>2021-08-30 10:24:50 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-08-30 10:24:50 -0700
commitaa99f3c2b9c797d8fee28c674a2cbb5adb2ce2ef (patch)
tree98ccf3a82c39f7097111a08cfc7531a41be3ef06 /fs/ext2/ext2.h
parenta1ca8e7147d07cb8649c618bc9902a9a7e6444e1 (diff)
parent7882c55ef64a8179160f24d86e82e525ffcce020 (diff)
Merge tag 'hole_punch_for_v5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull fs hole punching vs cache filling race fixes from Jan Kara: "Fix races leading to possible data corruption or stale data exposure in multiple filesystems when hole punching races with operations such as readahead. This is the series I was sending for the last merge window but with your objection fixed - now filemap_fault() has been modified to take invalidate_lock only when we need to create new page in the page cache and / or bring it uptodate" * tag 'hole_punch_for_v5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: filesystems/locking: fix Malformed table warning cifs: Fix race between hole punch and page fault ceph: Fix race between hole punch and page fault fuse: Convert to using invalidate_lock f2fs: Convert to using invalidate_lock zonefs: Convert to using invalidate_lock xfs: Convert double locking of MMAPLOCK to use VFS helpers xfs: Convert to use invalidate_lock xfs: Refactor xfs_isilocked() ext2: Convert to using invalidate_lock ext4: Convert to use mapping->invalidate_lock mm: Add functions to lock invalidate_lock for two mappings mm: Protect operations adding pages to page cache with invalidate_lock documentation: Sync file_operations members with reality mm: Fix comments mentioning i_mutex
Diffstat (limited to 'fs/ext2/ext2.h')
-rw-r--r--fs/ext2/ext2.h11
1 files changed, 0 insertions, 11 deletions
diff --git a/fs/ext2/ext2.h b/fs/ext2/ext2.h
index e512630cb63e..3be9dd6412b7 100644
--- a/fs/ext2/ext2.h
+++ b/fs/ext2/ext2.h
@@ -667,9 +667,6 @@ struct ext2_inode_info {
struct rw_semaphore xattr_sem;
#endif
rwlock_t i_meta_lock;
-#ifdef CONFIG_FS_DAX
- struct rw_semaphore dax_sem;
-#endif
/*
* truncate_mutex is for serialising ext2_truncate() against
@@ -685,14 +682,6 @@ struct ext2_inode_info {
#endif
};
-#ifdef CONFIG_FS_DAX
-#define dax_sem_down_write(ext2_inode) down_write(&(ext2_inode)->dax_sem)
-#define dax_sem_up_write(ext2_inode) up_write(&(ext2_inode)->dax_sem)
-#else
-#define dax_sem_down_write(ext2_inode)
-#define dax_sem_up_write(ext2_inode)
-#endif
-
/*
* Inode dynamic state flags
*/