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| author | Carlos Maiolino <cmaiolino@redhat.com> | 2020-09-04 09:51:39 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2020-09-15 20:52:42 -0700 |
| commit | c418dbc9805dbd215586454f0c5729333219aa63 (patch) | |
| tree | f537a8358e0bd4aff6a5de20a78f9bce3b6c4f46 /fs/xfs | |
| parent | 47e6cc100054c8c6b809e25c286a2fd82e82bcb7 (diff) | |
| download | linux-c418dbc9805dbd215586454f0c5729333219aa63.tar.bz2 | |
xfs: Use variable-size array for nameval in xfs_attr_sf_entry
nameval is a variable-size array, so, define it as it, and remove all
the -1 magic number subtractions
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs')
| -rw-r--r-- | fs/xfs/libxfs/xfs_attr_leaf.c | 7 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_attr_sf.h | 4 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_da_format.h | 2 |
3 files changed, 6 insertions, 7 deletions
diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c index d920183b08a9..61dacb7fc0f3 100644 --- a/fs/xfs/libxfs/xfs_attr_leaf.c +++ b/fs/xfs/libxfs/xfs_attr_leaf.c @@ -992,9 +992,8 @@ xfs_attr_shortform_allfit( return 0; if (be16_to_cpu(name_loc->valuelen) >= XFS_ATTR_SF_ENTSIZE_MAX) return 0; - bytes += sizeof(struct xfs_attr_sf_entry) - 1 - + name_loc->namelen - + be16_to_cpu(name_loc->valuelen); + bytes += XFS_ATTR_SF_ENTSIZE_BYNAME(name_loc->namelen, + be16_to_cpu(name_loc->valuelen)); } if ((dp->i_mount->m_flags & XFS_MOUNT_ATTR2) && (dp->i_df.if_format != XFS_DINODE_FMT_BTREE) && @@ -1039,7 +1038,7 @@ xfs_attr_shortform_verify( * xfs_attr_sf_entry is defined with a 1-byte variable * array at the end, so we must subtract that off. */ - if (((char *)sfep + sizeof(*sfep) - 1) >= endp) + if (((char *)sfep + sizeof(*sfep)) >= endp) return __this_address; /* Don't allow names with known bad length. */ diff --git a/fs/xfs/libxfs/xfs_attr_sf.h b/fs/xfs/libxfs/xfs_attr_sf.h index c4afb3307918..29934103ce55 100644 --- a/fs/xfs/libxfs/xfs_attr_sf.h +++ b/fs/xfs/libxfs/xfs_attr_sf.h @@ -27,11 +27,11 @@ typedef struct xfs_attr_sf_sort { } xfs_attr_sf_sort_t; #define XFS_ATTR_SF_ENTSIZE_BYNAME(nlen,vlen) /* space name/value uses */ \ - (((int)sizeof(struct xfs_attr_sf_entry)-1 + (nlen)+(vlen))) + ((sizeof(struct xfs_attr_sf_entry) + (nlen) + (vlen))) #define XFS_ATTR_SF_ENTSIZE_MAX /* max space for name&value */ \ ((1 << (NBBY*(int)sizeof(uint8_t))) - 1) #define XFS_ATTR_SF_ENTSIZE(sfep) /* space an entry uses */ \ - ((int)sizeof(struct xfs_attr_sf_entry)-1 + \ + ((int)sizeof(struct xfs_attr_sf_entry) + \ (sfep)->namelen+(sfep)->valuelen) #define XFS_ATTR_SF_NEXTENTRY(sfep) /* next entry in struct */ \ ((struct xfs_attr_sf_entry *)((char *)(sfep) + \ diff --git a/fs/xfs/libxfs/xfs_da_format.h b/fs/xfs/libxfs/xfs_da_format.h index e708b714bf99..b40a4e80f5ee 100644 --- a/fs/xfs/libxfs/xfs_da_format.h +++ b/fs/xfs/libxfs/xfs_da_format.h @@ -589,7 +589,7 @@ struct xfs_attr_shortform { uint8_t namelen; /* actual length of name (no NULL) */ uint8_t valuelen; /* actual length of value (no NULL) */ uint8_t flags; /* flags bits (see xfs_attr_leaf.h) */ - uint8_t nameval[1]; /* name & value bytes concatenated */ + uint8_t nameval[]; /* name & value bytes concatenated */ } list[1]; /* variable sized array */ }; |