On Fri 21-03-25 20:48:41, Andrey Albershteyn wrote: > This will be helpful for get/setfsxattrat syscalls to convert > between fileattr and fsxattr. > > Signed-off-by: Andrey Albershteyn <aalbe...@kernel.org>
Looks good. Feel free to add: Reviewed-by: Jan Kara <j...@suse.cz> Honza > --- > fs/ioctl.c | 32 +++++++++++++++++++++----------- > include/linux/fileattr.h | 2 ++ > 2 files changed, 23 insertions(+), 11 deletions(-) > > diff --git a/fs/ioctl.c b/fs/ioctl.c > index > 4434c97bc5dff5a3e8635e28745cd99404ff353e..840283d8c406623d8d26790f89b62ebcbd39e2de > 100644 > --- a/fs/ioctl.c > +++ b/fs/ioctl.c > @@ -538,6 +538,16 @@ int vfs_fileattr_get(struct dentry *dentry, struct > fileattr *fa) > } > EXPORT_SYMBOL(vfs_fileattr_get); > > +void fileattr_to_fsxattr(const struct fileattr *fa, struct fsxattr *fsx) > +{ > + memset(fsx, 0, sizeof(struct fsxattr)); > + fsx->fsx_xflags = fa->fsx_xflags; > + fsx->fsx_extsize = fa->fsx_extsize; > + fsx->fsx_nextents = fa->fsx_nextents; > + fsx->fsx_projid = fa->fsx_projid; > + fsx->fsx_cowextsize = fa->fsx_cowextsize; > +} > + > /** > * copy_fsxattr_to_user - copy fsxattr to userspace. > * @fa: fileattr pointer > @@ -549,12 +559,7 @@ int copy_fsxattr_to_user(const struct fileattr *fa, > struct fsxattr __user *ufa) > { > struct fsxattr xfa; > > - memset(&xfa, 0, sizeof(xfa)); > - xfa.fsx_xflags = fa->fsx_xflags; > - xfa.fsx_extsize = fa->fsx_extsize; > - xfa.fsx_nextents = fa->fsx_nextents; > - xfa.fsx_projid = fa->fsx_projid; > - xfa.fsx_cowextsize = fa->fsx_cowextsize; > + fileattr_to_fsxattr(fa, &xfa); > > if (copy_to_user(ufa, &xfa, sizeof(xfa))) > return -EFAULT; > @@ -563,6 +568,15 @@ int copy_fsxattr_to_user(const struct fileattr *fa, > struct fsxattr __user *ufa) > } > EXPORT_SYMBOL(copy_fsxattr_to_user); > > +void fsxattr_to_fileattr(const struct fsxattr *fsx, struct fileattr *fa) > +{ > + fileattr_fill_xflags(fa, fsx->fsx_xflags); > + fa->fsx_extsize = fsx->fsx_extsize; > + fa->fsx_nextents = fsx->fsx_nextents; > + fa->fsx_projid = fsx->fsx_projid; > + fa->fsx_cowextsize = fsx->fsx_cowextsize; > +} > + > static int copy_fsxattr_from_user(struct fileattr *fa, > struct fsxattr __user *ufa) > { > @@ -571,11 +585,7 @@ static int copy_fsxattr_from_user(struct fileattr *fa, > if (copy_from_user(&xfa, ufa, sizeof(xfa))) > return -EFAULT; > > - fileattr_fill_xflags(fa, xfa.fsx_xflags); > - fa->fsx_extsize = xfa.fsx_extsize; > - fa->fsx_nextents = xfa.fsx_nextents; > - fa->fsx_projid = xfa.fsx_projid; > - fa->fsx_cowextsize = xfa.fsx_cowextsize; > + fsxattr_to_fileattr(&xfa, fa); > > return 0; > } > diff --git a/include/linux/fileattr.h b/include/linux/fileattr.h > index > 47c05a9851d0600964b644c9c7218faacfd865f8..31888fa2edf10050be134f587299256088344365 > 100644 > --- a/include/linux/fileattr.h > +++ b/include/linux/fileattr.h > @@ -33,7 +33,9 @@ struct fileattr { > bool fsx_valid:1; > }; > > +void fileattr_to_fsxattr(const struct fileattr *fa, struct fsxattr *fsx); > int copy_fsxattr_to_user(const struct fileattr *fa, struct fsxattr __user > *ufa); > +void fsxattr_to_fileattr(const struct fsxattr *fsx, struct fileattr *fa); > > void fileattr_fill_xflags(struct fileattr *fa, u32 xflags); > void fileattr_fill_flags(struct fileattr *fa, u32 flags); > > -- > 2.47.2 > -- Jan Kara <j...@suse.com> SUSE Labs, CR