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| author | Ira Weiny <ira.weiny@intel.com> | 2020-04-30 16:41:37 +0200 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2020-05-13 17:44:35 +0200 |
| commit | dae2f8ed7992e88c8d62c54e8295ffc8475b4a80 (patch) | |
| tree | 7d199574fcae172238c4312e8b98feb9cfe2e138 /fs/xfs/xfs_inode.h | |
| parent | Documentation/dax: Update Usage section (diff) | |
| download | linux-dae2f8ed7992e88c8d62c54e8295ffc8475b4a80.tar.xz linux-dae2f8ed7992e88c8d62c54e8295ffc8475b4a80.zip | |
fs: Lift XFS_IDONTCACHE to the VFS layer
DAX effective mode (S_DAX) changes requires inode eviction.
XFS has an advisory flag (XFS_IDONTCACHE) to prevent caching of the
inode if no other additional references are taken. We lift this flag to
the VFS layer and change the behavior slightly by allowing the flag to
remain even if multiple references are taken.
This will expedite the eviction of inodes to change S_DAX.
Cc: Al Viro <viro@zeniv.linux.org.uk>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs/xfs_inode.h')
| -rw-r--r-- | fs/xfs/xfs_inode.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h index c6a63f6764a6..95209e3256a2 100644 --- a/fs/xfs/xfs_inode.h +++ b/fs/xfs/xfs_inode.h @@ -218,8 +218,7 @@ static inline bool xfs_inode_has_cow_data(struct xfs_inode *ip) #define XFS_IFLOCK (1 << __XFS_IFLOCK_BIT) #define __XFS_IPINNED_BIT 8 /* wakeup key for zero pin count */ #define XFS_IPINNED (1 << __XFS_IPINNED_BIT) -#define XFS_IDONTCACHE (1 << 9) /* don't cache the inode long term */ -#define XFS_IEOFBLOCKS (1 << 10)/* has the preallocblocks tag set */ +#define XFS_IEOFBLOCKS (1 << 9) /* has the preallocblocks tag set */ /* * If this unlinked inode is in the middle of recovery, don't let drop_inode * truncate and free the inode. This can happen if we iget the inode during |