From e7927e879d12d27aa06b9bbed57cc32dcd7d17fd Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 27 May 2013 16:38:26 +1000 Subject: [PATCH] xfs: add fsgeom flag for v5 superblock support. Currently userspace has no way of determining that a filesystem is CRC enabled. Add a flag to the XFS_IOC_FSGEOMETRY ioctl output to indicate that the filesystem has v5 superblock support enabled. This will allow xfs_info to correctly report the state of the filesystem. Signed-off-by: Dave Chinner Reviewed-by: Eric Sandeen Reviewed-by: Brian Foster Signed-off-by: Ben Myers (cherry picked from commit 74137fff067961c9aca1e14d073805c3de8549bd) --- fs/xfs/xfs_fs.h | 1 + fs/xfs/xfs_fsops.c | 4 +++- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/fs/xfs/xfs_fs.h b/fs/xfs/xfs_fs.h index 6dda3f949b04..d04695545397 100644 --- a/fs/xfs/xfs_fs.h +++ b/fs/xfs/xfs_fs.h @@ -236,6 +236,7 @@ typedef struct xfs_fsop_resblks { #define XFS_FSOP_GEOM_FLAGS_PROJID32 0x0800 /* 32-bit project IDs */ #define XFS_FSOP_GEOM_FLAGS_DIRV2CI 0x1000 /* ASCII only CI names */ #define XFS_FSOP_GEOM_FLAGS_LAZYSB 0x4000 /* lazy superblock counters */ +#define XFS_FSOP_GEOM_FLAGS_V5SB 0x8000 /* version 5 superblock */ /* diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c index 87595b211da1..3c3644ea825b 100644 --- a/fs/xfs/xfs_fsops.c +++ b/fs/xfs/xfs_fsops.c @@ -99,7 +99,9 @@ xfs_fs_geometry( (xfs_sb_version_hasattr2(&mp->m_sb) ? XFS_FSOP_GEOM_FLAGS_ATTR2 : 0) | (xfs_sb_version_hasprojid32bit(&mp->m_sb) ? - XFS_FSOP_GEOM_FLAGS_PROJID32 : 0); + XFS_FSOP_GEOM_FLAGS_PROJID32 : 0) | + (xfs_sb_version_hascrc(&mp->m_sb) ? + XFS_FSOP_GEOM_FLAGS_V5SB : 0); geo->logsectsize = xfs_sb_version_hassector(&mp->m_sb) ? mp->m_sb.sb_logsectsize : BBSIZE; geo->rtsectsize = mp->m_sb.sb_blocksize; -- 2.20.1