From: "Darrick J. Wong" <darrick.wong@oracle.com> To: mfasheh@versity.com, jlbec@evilplan.org, darrick.wong@oracle.com Cc: linux-fsdevel@vger.kernel.org, ocfs2-devel@oss.oracle.com Subject: [PATCH 1/6] ocfs2: convert inode refcount test to a helper Date: Wed, 09 Nov 2016 14:51:12 -0800 [thread overview] Message-ID: <147873187285.2820.9992440620792982440.stgit@birch.djwong.org> (raw) In-Reply-To: <147873186646.2820.17513529102740292215.stgit@birch.djwong.org> Replace the open-coded inode refcount flag test with a helper function to reduce the potential for bugs. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> --- fs/ocfs2/refcounttree.c | 28 +++++++++++++++------------- fs/ocfs2/refcounttree.h | 2 ++ 2 files changed, 17 insertions(+), 13 deletions(-) diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c index 1923851..59be8f4 100644 --- a/fs/ocfs2/refcounttree.c +++ b/fs/ocfs2/refcounttree.c @@ -48,6 +48,12 @@ #include <linux/mount.h> #include <linux/posix_acl.h> +/* Does this inode have the reflink flag set? */ +bool ocfs2_is_refcount_inode(struct inode *inode) +{ + return (OCFS2_I(inode)->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL); +} + struct ocfs2_cow_context { struct inode *inode; u32 cow_start; @@ -410,7 +416,7 @@ static int ocfs2_get_refcount_block(struct inode *inode, u64 *ref_blkno) goto out; } - BUG_ON(!(OCFS2_I(inode)->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL)); + BUG_ON(!ocfs2_is_refcount_inode(inode)); di = (struct ocfs2_dinode *)di_bh->b_data; *ref_blkno = le64_to_cpu(di->i_refcount_loc); @@ -570,7 +576,7 @@ static int ocfs2_create_refcount_tree(struct inode *inode, u32 num_got; u64 suballoc_loc, first_blkno; - BUG_ON(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL); + BUG_ON(ocfs2_is_refcount_inode(inode)); trace_ocfs2_create_refcount_tree( (unsigned long long)OCFS2_I(inode)->ip_blkno); @@ -708,7 +714,7 @@ static int ocfs2_set_refcount_tree(struct inode *inode, struct ocfs2_refcount_block *rb; struct ocfs2_refcount_tree *ref_tree; - BUG_ON(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL); + BUG_ON(ocfs2_is_refcount_inode(inode)); ret = ocfs2_lock_refcount_tree(osb, refcount_loc, 1, &ref_tree, &ref_root_bh); @@ -775,7 +781,7 @@ int ocfs2_remove_refcount_tree(struct inode *inode, struct buffer_head *di_bh) u64 blk = 0, bg_blkno = 0, ref_blkno = le64_to_cpu(di->i_refcount_loc); u16 bit = 0; - if (!(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL)) + if (!ocfs2_is_refcount_inode(inode)) return 0; BUG_ON(!ref_blkno); @@ -2299,11 +2305,10 @@ int ocfs2_decrease_refcount(struct inode *inode, { int ret; u64 ref_blkno; - struct ocfs2_inode_info *oi = OCFS2_I(inode); struct buffer_head *ref_root_bh = NULL; struct ocfs2_refcount_tree *tree; - BUG_ON(!(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL)); + BUG_ON(!ocfs2_is_refcount_inode(inode)); ret = ocfs2_get_refcount_block(inode, &ref_blkno); if (ret) { @@ -2533,7 +2538,6 @@ int ocfs2_prepare_refcount_change_for_del(struct inode *inode, int *ref_blocks) { int ret; - struct ocfs2_inode_info *oi = OCFS2_I(inode); struct buffer_head *ref_root_bh = NULL; struct ocfs2_refcount_tree *tree; u64 start_cpos = ocfs2_blocks_to_clusters(inode->i_sb, phys_blkno); @@ -2544,7 +2548,7 @@ int ocfs2_prepare_refcount_change_for_del(struct inode *inode, goto out; } - BUG_ON(!(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL)); + BUG_ON(!ocfs2_is_refcount_inode(inode)); ret = ocfs2_get_refcount_tree(OCFS2_SB(inode->i_sb), refcount_loc, &tree); @@ -3412,14 +3416,13 @@ static int ocfs2_refcount_cow_hunk(struct inode *inode, { int ret; u32 cow_start = 0, cow_len = 0; - struct ocfs2_inode_info *oi = OCFS2_I(inode); struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); struct ocfs2_dinode *di = (struct ocfs2_dinode *)di_bh->b_data; struct buffer_head *ref_root_bh = NULL; struct ocfs2_refcount_tree *ref_tree; struct ocfs2_cow_context *context = NULL; - BUG_ON(!(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL)); + BUG_ON(!ocfs2_is_refcount_inode(inode)); ret = ocfs2_refcount_cal_cow_clusters(inode, &di->id2.i_list, cpos, write_len, max_cpos, @@ -3629,11 +3632,10 @@ int ocfs2_refcount_cow_xattr(struct inode *inode, { int ret; struct ocfs2_xattr_value_root *xv = vb->vb_xv; - struct ocfs2_inode_info *oi = OCFS2_I(inode); struct ocfs2_cow_context *context = NULL; u32 cow_start, cow_len; - BUG_ON(!(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL)); + BUG_ON(!ocfs2_is_refcount_inode(inode)); ret = ocfs2_refcount_cal_cow_clusters(inode, &xv->xr_list, cpos, write_len, UINT_MAX, @@ -3807,7 +3809,7 @@ static int ocfs2_attach_refcount_tree(struct inode *inode, ocfs2_init_dealloc_ctxt(&dealloc); - if (!(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL)) { + if (!ocfs2_is_refcount_inode(inode)) { ret = ocfs2_create_refcount_tree(inode, di_bh); if (ret) { mlog_errno(ret); diff --git a/fs/ocfs2/refcounttree.h b/fs/ocfs2/refcounttree.h index 6422bbc..553edfb 100644 --- a/fs/ocfs2/refcounttree.h +++ b/fs/ocfs2/refcounttree.h @@ -17,6 +17,8 @@ #ifndef OCFS2_REFCOUNTTREE_H #define OCFS2_REFCOUNTTREE_H +bool ocfs2_is_refcount_inode(struct inode *inode); + struct ocfs2_refcount_tree { struct rb_node rf_node; u64 rf_blkno;
WARNING: multiple messages have this Message-ID (diff)
From: Darrick J. Wong <darrick.wong@oracle.com> To: mfasheh@versity.com, jlbec@evilplan.org, darrick.wong@oracle.com Cc: linux-fsdevel@vger.kernel.org, ocfs2-devel@oss.oracle.com Subject: [Ocfs2-devel] [PATCH 1/6] ocfs2: convert inode refcount test to a helper Date: Wed, 09 Nov 2016 14:51:12 -0800 [thread overview] Message-ID: <147873187285.2820.9992440620792982440.stgit@birch.djwong.org> (raw) In-Reply-To: <147873186646.2820.17513529102740292215.stgit@birch.djwong.org> Replace the open-coded inode refcount flag test with a helper function to reduce the potential for bugs. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> --- fs/ocfs2/refcounttree.c | 28 +++++++++++++++------------- fs/ocfs2/refcounttree.h | 2 ++ 2 files changed, 17 insertions(+), 13 deletions(-) diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c index 1923851..59be8f4 100644 --- a/fs/ocfs2/refcounttree.c +++ b/fs/ocfs2/refcounttree.c @@ -48,6 +48,12 @@ #include <linux/mount.h> #include <linux/posix_acl.h> +/* Does this inode have the reflink flag set? */ +bool ocfs2_is_refcount_inode(struct inode *inode) +{ + return (OCFS2_I(inode)->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL); +} + struct ocfs2_cow_context { struct inode *inode; u32 cow_start; @@ -410,7 +416,7 @@ static int ocfs2_get_refcount_block(struct inode *inode, u64 *ref_blkno) goto out; } - BUG_ON(!(OCFS2_I(inode)->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL)); + BUG_ON(!ocfs2_is_refcount_inode(inode)); di = (struct ocfs2_dinode *)di_bh->b_data; *ref_blkno = le64_to_cpu(di->i_refcount_loc); @@ -570,7 +576,7 @@ static int ocfs2_create_refcount_tree(struct inode *inode, u32 num_got; u64 suballoc_loc, first_blkno; - BUG_ON(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL); + BUG_ON(ocfs2_is_refcount_inode(inode)); trace_ocfs2_create_refcount_tree( (unsigned long long)OCFS2_I(inode)->ip_blkno); @@ -708,7 +714,7 @@ static int ocfs2_set_refcount_tree(struct inode *inode, struct ocfs2_refcount_block *rb; struct ocfs2_refcount_tree *ref_tree; - BUG_ON(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL); + BUG_ON(ocfs2_is_refcount_inode(inode)); ret = ocfs2_lock_refcount_tree(osb, refcount_loc, 1, &ref_tree, &ref_root_bh); @@ -775,7 +781,7 @@ int ocfs2_remove_refcount_tree(struct inode *inode, struct buffer_head *di_bh) u64 blk = 0, bg_blkno = 0, ref_blkno = le64_to_cpu(di->i_refcount_loc); u16 bit = 0; - if (!(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL)) + if (!ocfs2_is_refcount_inode(inode)) return 0; BUG_ON(!ref_blkno); @@ -2299,11 +2305,10 @@ int ocfs2_decrease_refcount(struct inode *inode, { int ret; u64 ref_blkno; - struct ocfs2_inode_info *oi = OCFS2_I(inode); struct buffer_head *ref_root_bh = NULL; struct ocfs2_refcount_tree *tree; - BUG_ON(!(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL)); + BUG_ON(!ocfs2_is_refcount_inode(inode)); ret = ocfs2_get_refcount_block(inode, &ref_blkno); if (ret) { @@ -2533,7 +2538,6 @@ int ocfs2_prepare_refcount_change_for_del(struct inode *inode, int *ref_blocks) { int ret; - struct ocfs2_inode_info *oi = OCFS2_I(inode); struct buffer_head *ref_root_bh = NULL; struct ocfs2_refcount_tree *tree; u64 start_cpos = ocfs2_blocks_to_clusters(inode->i_sb, phys_blkno); @@ -2544,7 +2548,7 @@ int ocfs2_prepare_refcount_change_for_del(struct inode *inode, goto out; } - BUG_ON(!(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL)); + BUG_ON(!ocfs2_is_refcount_inode(inode)); ret = ocfs2_get_refcount_tree(OCFS2_SB(inode->i_sb), refcount_loc, &tree); @@ -3412,14 +3416,13 @@ static int ocfs2_refcount_cow_hunk(struct inode *inode, { int ret; u32 cow_start = 0, cow_len = 0; - struct ocfs2_inode_info *oi = OCFS2_I(inode); struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); struct ocfs2_dinode *di = (struct ocfs2_dinode *)di_bh->b_data; struct buffer_head *ref_root_bh = NULL; struct ocfs2_refcount_tree *ref_tree; struct ocfs2_cow_context *context = NULL; - BUG_ON(!(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL)); + BUG_ON(!ocfs2_is_refcount_inode(inode)); ret = ocfs2_refcount_cal_cow_clusters(inode, &di->id2.i_list, cpos, write_len, max_cpos, @@ -3629,11 +3632,10 @@ int ocfs2_refcount_cow_xattr(struct inode *inode, { int ret; struct ocfs2_xattr_value_root *xv = vb->vb_xv; - struct ocfs2_inode_info *oi = OCFS2_I(inode); struct ocfs2_cow_context *context = NULL; u32 cow_start, cow_len; - BUG_ON(!(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL)); + BUG_ON(!ocfs2_is_refcount_inode(inode)); ret = ocfs2_refcount_cal_cow_clusters(inode, &xv->xr_list, cpos, write_len, UINT_MAX, @@ -3807,7 +3809,7 @@ static int ocfs2_attach_refcount_tree(struct inode *inode, ocfs2_init_dealloc_ctxt(&dealloc); - if (!(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL)) { + if (!ocfs2_is_refcount_inode(inode)) { ret = ocfs2_create_refcount_tree(inode, di_bh); if (ret) { mlog_errno(ret); diff --git a/fs/ocfs2/refcounttree.h b/fs/ocfs2/refcounttree.h index 6422bbc..553edfb 100644 --- a/fs/ocfs2/refcounttree.h +++ b/fs/ocfs2/refcounttree.h @@ -17,6 +17,8 @@ #ifndef OCFS2_REFCOUNTTREE_H #define OCFS2_REFCOUNTTREE_H +bool ocfs2_is_refcount_inode(struct inode *inode); + struct ocfs2_refcount_tree { struct rb_node rf_node; u64 rf_blkno;
next prev parent reply other threads:[~2016-11-09 22:51 UTC|newest] Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-11-09 22:51 [PATCH 0/6] ocfs2: wire up {clone,copy,dedupe}_range Darrick J. Wong 2016-11-09 22:51 ` [Ocfs2-devel] [PATCH 0/6] ocfs2: wire up {clone, copy, dedupe}_range Darrick J. Wong 2016-11-09 22:51 ` Darrick J. Wong [this message] 2016-11-09 22:51 ` [Ocfs2-devel] [PATCH 1/6] ocfs2: convert inode refcount test to a helper Darrick J. Wong 2016-11-10 2:14 ` Eric Ren 2016-11-10 2:14 ` [Ocfs2-devel] " Eric Ren 2016-11-10 17:51 ` Darrick J. Wong 2016-11-10 17:51 ` [Ocfs2-devel] " Darrick J. Wong 2016-11-10 17:52 ` [PATCH v2 " Darrick J. Wong 2016-11-10 17:52 ` [Ocfs2-devel] " Darrick J. Wong 2016-11-09 22:51 ` [PATCH 2/6] ocfs2: add newlines to some error messages Darrick J. Wong 2016-11-09 22:51 ` [Ocfs2-devel] " Darrick J. Wong 2016-11-09 22:51 ` [PATCH 3/6] ocfs2: prohibit refcounted swapfiles Darrick J. Wong 2016-11-09 22:51 ` [Ocfs2-devel] " Darrick J. Wong 2016-11-09 22:51 ` [PATCH 4/6] ocfs2: budget for extent tree splits when adding refcount flag Darrick J. Wong 2016-11-09 22:51 ` [Ocfs2-devel] " Darrick J. Wong 2016-11-10 9:20 ` Darwin 2016-11-10 9:20 ` Darwin 2016-11-10 17:11 ` Darrick J. Wong 2016-11-10 17:11 ` Darrick J. Wong 2016-11-11 3:00 ` Darwin 2016-11-11 3:00 ` Darwin 2016-11-09 22:51 ` [PATCH 5/6] ocfs2: don't eat io errors during _dio_end_io_write Darrick J. Wong 2016-11-09 22:51 ` [Ocfs2-devel] " Darrick J. Wong 2016-11-09 22:51 ` [PATCH 6/6] ocfs2: implement the VFS clone_range, copy_range, and dedupe_range features Darrick J. Wong 2016-11-09 22:51 ` [Ocfs2-devel] " Darrick J. Wong 2016-11-11 5:49 ` Eric Ren 2016-11-11 5:49 ` Eric Ren 2016-11-11 6:20 ` Darrick J. Wong 2016-11-11 6:20 ` Darrick J. Wong 2016-11-11 6:45 ` Eric Ren 2016-11-11 6:45 ` Eric Ren 2016-11-11 9:01 ` Darrick J. Wong 2016-11-11 9:01 ` Darrick J. Wong 2016-11-11 14:54 ` [PATCH v2 " Darrick J. Wong 2016-11-11 14:54 ` [Ocfs2-devel] " Darrick J. Wong 2016-11-09 23:00 ` [PATCH 7/6] xfstests: fix some minor problems testing ocfs2 Darrick J. Wong 2016-11-09 23:00 ` [Ocfs2-devel] " Darrick J. Wong 2016-11-11 3:15 ` [PATCH 0/6] ocfs2: wire up {clone,copy,dedupe}_range Eric Ren 2016-11-11 3:15 ` [Ocfs2-devel] [PATCH 0/6] ocfs2: wire up {clone, copy, dedupe}_range Eric Ren 2016-11-11 15:05 ` [PATCH 0/6] ocfs2: wire up {clone,copy,dedupe}_range Darrick J. Wong 2016-11-11 15:05 ` [Ocfs2-devel] [PATCH 0/6] ocfs2: wire up {clone, copy, dedupe}_range Darrick J. Wong
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