Re: [PATCH v22 09/16] xfs: Implement attr logging and replay
From: Chandan Babu R <hidden>
Date: 2021-07-27 09:38:09
On 27 Jul 2021 at 11:50, Allison Henderson wrote:
quoted hunk ↗ jump to hunk
This patch adds the needed routines to create, log and recover logged extended attribute intents. Signed-off-by: Allison Henderson <redacted> --- fs/xfs/libxfs/xfs_defer.c | 1 + fs/xfs/libxfs/xfs_defer.h | 1 + fs/xfs/libxfs/xfs_format.h | 10 +- fs/xfs/xfs_attr_item.c | 377 +++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 388 insertions(+), 1 deletion(-)diff --git a/fs/xfs/libxfs/xfs_defer.c b/fs/xfs/libxfs/xfs_defer.c index eff4a12..e9caff7 100644 --- a/fs/xfs/libxfs/xfs_defer.c +++ b/fs/xfs/libxfs/xfs_defer.c@@ -178,6 +178,7 @@ static const struct xfs_defer_op_type *defer_op_types[] = { [XFS_DEFER_OPS_TYPE_RMAP] = &xfs_rmap_update_defer_type, [XFS_DEFER_OPS_TYPE_FREE] = &xfs_extent_free_defer_type, [XFS_DEFER_OPS_TYPE_AGFL_FREE] = &xfs_agfl_free_defer_type, + [XFS_DEFER_OPS_TYPE_ATTR] = &xfs_attr_defer_type, }; static voiddiff --git a/fs/xfs/libxfs/xfs_defer.h b/fs/xfs/libxfs/xfs_defer.h index 0ed9dfa..72a5789 100644 --- a/fs/xfs/libxfs/xfs_defer.h +++ b/fs/xfs/libxfs/xfs_defer.h@@ -19,6 +19,7 @@ enum xfs_defer_ops_type { XFS_DEFER_OPS_TYPE_RMAP, XFS_DEFER_OPS_TYPE_FREE, XFS_DEFER_OPS_TYPE_AGFL_FREE, + XFS_DEFER_OPS_TYPE_ATTR, XFS_DEFER_OPS_TYPE_MAX, };diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h index 3a4da111..93c1263 100644 --- a/fs/xfs/libxfs/xfs_format.h +++ b/fs/xfs/libxfs/xfs_format.h@@ -485,7 +485,9 @@ xfs_sb_has_incompat_feature( return (sbp->sb_features_incompat & feature) != 0; } -#define XFS_SB_FEAT_INCOMPAT_LOG_ALL 0 +#define XFS_SB_FEAT_INCOMPAT_LOG_DELATTR (1 << 0) /* Delayed Attributes */ +#define XFS_SB_FEAT_INCOMPAT_LOG_ALL \ + (XFS_SB_FEAT_INCOMPAT_LOG_DELATTR) #define XFS_SB_FEAT_INCOMPAT_LOG_UNKNOWN ~XFS_SB_FEAT_INCOMPAT_LOG_ALL static inline bool xfs_sb_has_incompat_log_feature(@@ -590,6 +592,12 @@ static inline bool xfs_sb_version_hasbigtime(struct xfs_sb *sbp) (sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_BIGTIME); } +static inline bool xfs_sb_version_hasdelattr(struct xfs_sb *sbp) +{ + return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5 && + (sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_LOG_DELATTR);
The above should have been sbp->sb_features_log_incompat instead of sbp->sb_features_incompat. I found this when trying to understand sb_features_log_incompat's behaviour. I will do a thorough review soon. -- chandan