gfs2: Add gfs2_max_stuffed_size

Add a small inline function for computing the maximum size of a stuffed
inode instead of open coding that in several places throughout the code.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>

1 files changed, 2 insertions, 4 deletions

diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 4e971b1c7f92..20281992d456 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -1184,11 +1184,10 @@ out_inodes:
 static int gfs2_symlink(struct inode *dir, struct dentry *dentry,
                         const char *symname)
 {
-        struct gfs2_sbd *sdp = GFS2_SB(dir);
         unsigned int size;
 
         size = strlen(symname);
-        if (size > sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode) - 1)
+        if (size >= gfs2_max_stuffed_size(GFS2_I(dir)))
                 return -ENAMETOOLONG;
 
         return gfs2_create_inode(dir, dentry, NULL, S_IFLNK | S_IRWXUGO, 0, symname, size, 0, NULL);
@@ -1205,8 +1204,7 @@ static int gfs2_symlink(struct inode *dir, struct dentry *dentry,
 
 static int gfs2_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
-        struct gfs2_sbd *sdp = GFS2_SB(dir);
-        unsigned dsize = sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode);
+        unsigned dsize = gfs2_max_stuffed_size(GFS2_I(dir));
         return gfs2_create_inode(dir, dentry, NULL, S_IFDIR | mode, 0, NULL, dsize, 0, NULL);
 }