From b7e23c0e2e3b1c520a3370f058870b914071a470 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 22 Apr 2024 13:20:08 +0200 Subject: xfs: refactor realtime inode locking Create helper functions to deal with locking realtime metadata inodes. This enables us to maintain correct locking order once we start adding the realtime rmap and refcount btree inodes. Signed-off-by: "Darrick J. Wong" Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner Signed-off-by: Chandan Babu R --- fs/xfs/libxfs/xfs_rtbitmap.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'fs/xfs/libxfs/xfs_rtbitmap.h') diff --git a/fs/xfs/libxfs/xfs_rtbitmap.h b/fs/xfs/libxfs/xfs_rtbitmap.h index 152a66750af5..6186585f2c37 100644 --- a/fs/xfs/libxfs/xfs_rtbitmap.h +++ b/fs/xfs/libxfs/xfs_rtbitmap.h @@ -360,6 +360,19 @@ xfs_filblks_t xfs_rtsummary_blockcount(struct xfs_mount *mp, unsigned int rsumlevels, xfs_extlen_t rbmblocks); unsigned long long xfs_rtsummary_wordcount(struct xfs_mount *mp, unsigned int rsumlevels, xfs_extlen_t rbmblocks); + +void xfs_rtbitmap_lock(struct xfs_trans *tp, struct xfs_mount *mp); +void xfs_rtbitmap_unlock(struct xfs_mount *mp); + +/* Lock the rt bitmap inode in shared mode */ +#define XFS_RBMLOCK_BITMAP (1U << 0) +/* Lock the rt summary inode in shared mode */ +#define XFS_RBMLOCK_SUMMARY (1U << 1) + +void xfs_rtbitmap_lock_shared(struct xfs_mount *mp, + unsigned int rbmlock_flags); +void xfs_rtbitmap_unlock_shared(struct xfs_mount *mp, + unsigned int rbmlock_flags); #else /* CONFIG_XFS_RT */ # define xfs_rtfree_extent(t,b,l) (-ENOSYS) # define xfs_rtfree_blocks(t,rb,rl) (-ENOSYS) @@ -378,6 +391,10 @@ xfs_rtbitmap_blockcount(struct xfs_mount *mp, xfs_rtbxlen_t rtextents) # define xfs_rtbitmap_wordcount(mp, r) (0) # define xfs_rtsummary_blockcount(mp, l, b) (0) # define xfs_rtsummary_wordcount(mp, l, b) (0) +# define xfs_rtbitmap_lock(tp, mp) do { } while (0) +# define xfs_rtbitmap_unlock(mp) do { } while (0) +# define xfs_rtbitmap_lock_shared(mp, lf) do { } while (0) +# define xfs_rtbitmap_unlock_shared(mp, lf) do { } while (0) #endif /* CONFIG_XFS_RT */ #endif /* __XFS_RTBITMAP_H__ */ -- cgit v1.2.3-59-g8ed1b