diff options
| author | Christoph Hellwig <hch@lst.de> | 2018-07-18 01:51:50 +0200 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2018-07-30 16:57:48 +0200 |
| commit | fcacbc3f511338842dd177e2d53d457f9741543b (patch) | |
| tree | 340ac5cb0dd6c2f2894e5a4d6f4b4038ad4f5f91 /fs/xfs/libxfs | |
| parent | xfs: move the repair extent list into its own file (diff) | |
| download | linux-fcacbc3f511338842dd177e2d53d457f9741543b.tar.xz linux-fcacbc3f511338842dd177e2d53d457f9741543b.zip | |
xfs: remove if_real_bytes
The field is only used for asserts, and to track if we really need to do
realloc when growing the inode fork data. But the krealloc function
already performs this check internally, so there is no need to keep track
of the real allocation size.
This will free space in the inode fork for keeping a sequence counter of
changes to the extent list.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs/libxfs')
| -rw-r--r-- | fs/xfs/libxfs/xfs_inode_fork.c | 19 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_inode_fork.h | 1 |
2 files changed, 4 insertions, 16 deletions
diff --git a/fs/xfs/libxfs/xfs_inode_fork.c b/fs/xfs/libxfs/xfs_inode_fork.c index 183ec0cb8921..dee85b0f8846 100644 --- a/fs/xfs/libxfs/xfs_inode_fork.c +++ b/fs/xfs/libxfs/xfs_inode_fork.c @@ -158,7 +158,6 @@ xfs_init_local_fork( } ifp->if_bytes = size; - ifp->if_real_bytes = real_size; ifp->if_flags &= ~(XFS_IFEXTENTS | XFS_IFBROOT); ifp->if_flags |= XFS_IFINLINE; } @@ -226,7 +225,6 @@ xfs_iformat_extents( return -EFSCORRUPTED; } - ifp->if_real_bytes = 0; ifp->if_bytes = 0; ifp->if_u1.if_root = NULL; ifp->if_height = 0; @@ -317,7 +315,6 @@ xfs_iformat_btree( ifp->if_flags &= ~XFS_IFEXTENTS; ifp->if_flags |= XFS_IFBROOT; - ifp->if_real_bytes = 0; ifp->if_bytes = 0; ifp->if_u1.if_root = NULL; ifp->if_height = 0; @@ -501,7 +498,6 @@ xfs_idata_realloc( */ real_size = roundup(new_size, 4); if (ifp->if_u1.if_data == NULL) { - ASSERT(ifp->if_real_bytes == 0); ifp->if_u1.if_data = kmem_alloc(real_size, KM_SLEEP | KM_NOFS); } else { @@ -509,15 +505,12 @@ xfs_idata_realloc( * Only do the realloc if the underlying size * is really changing. */ - if (ifp->if_real_bytes != real_size) { - ifp->if_u1.if_data = - kmem_realloc(ifp->if_u1.if_data, - real_size, - KM_SLEEP | KM_NOFS); - } + ifp->if_u1.if_data = + kmem_realloc(ifp->if_u1.if_data, + real_size, + KM_SLEEP | KM_NOFS); } } - ifp->if_real_bytes = real_size; ifp->if_bytes = new_size; ASSERT(ifp->if_bytes <= XFS_IFORK_SIZE(ip, whichfork)); } @@ -543,17 +536,13 @@ xfs_idestroy_fork( */ if (XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_LOCAL) { if (ifp->if_u1.if_data != NULL) { - ASSERT(ifp->if_real_bytes != 0); kmem_free(ifp->if_u1.if_data); ifp->if_u1.if_data = NULL; - ifp->if_real_bytes = 0; } } else if ((ifp->if_flags & XFS_IFEXTENTS) && ifp->if_height) { xfs_iext_destroy(ifp); } - ASSERT(ifp->if_real_bytes == 0); - if (whichfork == XFS_ATTR_FORK) { kmem_zone_free(xfs_ifork_zone, ip->i_afp); ip->i_afp = NULL; diff --git a/fs/xfs/libxfs/xfs_inode_fork.h b/fs/xfs/libxfs/xfs_inode_fork.h index 781b1603df5e..46242052aad0 100644 --- a/fs/xfs/libxfs/xfs_inode_fork.h +++ b/fs/xfs/libxfs/xfs_inode_fork.h @@ -14,7 +14,6 @@ struct xfs_dinode; */ typedef struct xfs_ifork { int if_bytes; /* bytes in if_u1 */ - int if_real_bytes; /* bytes allocated in if_u1 */ struct xfs_btree_block *if_broot; /* file's incore btree root */ short if_broot_bytes; /* bytes allocated for root */ unsigned char if_flags; /* per-fork flags */ |