[PATCH 1/8] xfs: don't pass ioflags around in the ioctl path

[Christoph Hellwig <hch@xxxxxx>]

Instead check the file pointer for the invisble I/O flag directly, and
use the chance to drop redundant arguments from the xfs_ioc_space
prototype.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
 fs/xfs/xfs_ioctl.c   | 22 ++++++++--------------
 fs/xfs/xfs_ioctl.h   |  3 ---
 fs/xfs/xfs_ioctl32.c |  6 +-----
 3 files changed, 9 insertions(+), 22 deletions(-)

diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index dbca737..6ab5a24 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -595,13 +595,12 @@ xfs_attrmulti_by_handle(
 
 int
 xfs_ioc_space(
-       struct xfs_inode        *ip,
-       struct inode            *inode,
        struct file             *filp,
-       int                     ioflags,
        unsigned int            cmd,
        xfs_flock64_t           *bf)
 {
+       struct inode            *inode = file_inode(filp);
+       struct xfs_inode        *ip = XFS_I(inode);
        struct iattr            iattr;
        enum xfs_prealloc_flags flags = 0;
        uint                    iolock = XFS_IOLOCK_EXCL;
@@ -626,7 +625,7 @@ xfs_ioc_space(
 
        if (filp->f_flags & O_DSYNC)
                flags |= XFS_PREALLOC_SYNC;
-       if (ioflags & XFS_IO_INVIS)
+       if (filp->f_mode & FMODE_NOCMTIME)
                flags |= XFS_PREALLOC_INVISIBLE;
 
        error = mnt_want_write_file(filp);
@@ -1464,8 +1463,7 @@ xfs_getbmap_format(void **ap, struct getbmapx *bmv, int 
*full)
 
 STATIC int
 xfs_ioc_getbmap(
-       struct xfs_inode        *ip,
-       int                     ioflags,
+       struct file             *file,
        unsigned int            cmd,
        void                    __user *arg)
 {
@@ -1479,10 +1477,10 @@ xfs_ioc_getbmap(
                return -EINVAL;
 
        bmx.bmv_iflags = (cmd == XFS_IOC_GETBMAPA ? BMV_IF_ATTRFORK : 0);
-       if (ioflags & XFS_IO_INVIS)
+       if (file->f_mode & FMODE_NOCMTIME)
                bmx.bmv_iflags |= BMV_IF_NO_DMAPI_READ;
 
-       error = xfs_getbmap(ip, &bmx, xfs_getbmap_format,
+       error = xfs_getbmap(XFS_I(file_inode(file)), &bmx, xfs_getbmap_format,
                            (__force struct getbmap *)arg+1);
        if (error)
                return error;
@@ -1619,12 +1617,8 @@ xfs_file_ioctl(
        struct xfs_inode        *ip = XFS_I(inode);
        struct xfs_mount        *mp = ip->i_mount;
        void                    __user *arg = (void __user *)p;
-       int                     ioflags = 0;
        int                     error;
 
-       if (filp->f_mode & FMODE_NOCMTIME)
-               ioflags |= XFS_IO_INVIS;
-
        trace_xfs_file_ioctl(ip);
 
        switch (cmd) {
@@ -1643,7 +1637,7 @@ xfs_file_ioctl(
 
                if (copy_from_user(&bf, arg, sizeof(bf)))
                        return -EFAULT;
-               return xfs_ioc_space(ip, inode, filp, ioflags, cmd, &bf);
+               return xfs_ioc_space(filp, cmd, &bf);
        }
        case XFS_IOC_DIOINFO: {
                struct dioattr  da;
@@ -1702,7 +1696,7 @@ xfs_file_ioctl(
 
        case XFS_IOC_GETBMAP:
        case XFS_IOC_GETBMAPA:
-               return xfs_ioc_getbmap(ip, ioflags, cmd, arg);
+               return xfs_ioc_getbmap(filp, cmd, arg);
 
        case XFS_IOC_GETBMAPX:
                return xfs_ioc_getbmapx(ip, arg);
diff --git a/fs/xfs/xfs_ioctl.h b/fs/xfs/xfs_ioctl.h
index 77c02c7..8b52881 100644
--- a/fs/xfs/xfs_ioctl.h
+++ b/fs/xfs/xfs_ioctl.h
@@ -20,10 +20,7 @@
 
 extern int
 xfs_ioc_space(
-       struct xfs_inode        *ip,
-       struct inode            *inode,
        struct file             *filp,
-       int                     ioflags,
        unsigned int            cmd,
        xfs_flock64_t           *bf);
 
diff --git a/fs/xfs/xfs_ioctl32.c b/fs/xfs/xfs_ioctl32.c
index 1a05d8a..321f577 100644
--- a/fs/xfs/xfs_ioctl32.c
+++ b/fs/xfs/xfs_ioctl32.c
@@ -532,12 +532,8 @@ xfs_file_compat_ioctl(
        struct xfs_inode        *ip = XFS_I(inode);
        struct xfs_mount        *mp = ip->i_mount;
        void                    __user *arg = (void __user *)p;
-       int                     ioflags = 0;
        int                     error;
 
-       if (filp->f_mode & FMODE_NOCMTIME)
-               ioflags |= XFS_IO_INVIS;
-
        trace_xfs_file_compat_ioctl(ip);
 
        switch (cmd) {
@@ -589,7 +585,7 @@ xfs_file_compat_ioctl(
                if (xfs_compat_flock64_copyin(&bf, arg))
                        return -EFAULT;
                cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
-               return xfs_ioc_space(ip, inode, filp, ioflags, cmd, &bf);
+               return xfs_ioc_space(filp, cmd, &bf);
        }
        case XFS_IOC_FSGEOMETRY_V1_32:
                return xfs_compat_ioc_fsgeometry_v1(mp, arg);
-- 
2.1.4