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authorMiklos Szeredi <mszeredi@redhat.com>2021-04-07 14:36:44 +0200
committerMiklos Szeredi <mszeredi@redhat.com>2021-04-12 15:04:30 +0200
commit51db776a430edd7477a779be0dc5c6fef4a05884 (patch)
treeddddcd3ebca7bef731fc1f54896af5362456eef2 /fs/inode.c
parent8871d84c8f8b0c6bc2430cca3aa5f2e272596961 (diff)
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vfs: remove unused ioctl helpers
Remove vfs_ioc_setflags_prepare(), vfs_ioc_fssetxattr_check() and simple_fill_fsxattr(), which are no longer used. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Diffstat (limited to 'fs/inode.c')
-rw-r--r--fs/inode.c87
1 files changed, 0 insertions, 87 deletions
diff --git a/fs/inode.c b/fs/inode.c
index a047ab306f9a..ae526fd9c0a4 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -12,7 +12,6 @@
#include <linux/security.h>
#include <linux/cdev.h>
#include <linux/memblock.h>
-#include <linux/fscrypt.h>
#include <linux/fsnotify.h>
#include <linux/mount.h>
#include <linux/posix_acl.h>
@@ -2314,89 +2313,3 @@ struct timespec64 current_time(struct inode *inode)
return timestamp_truncate(now, inode);
}
EXPORT_SYMBOL(current_time);
-
-/*
- * Generic function to check FS_IOC_SETFLAGS values and reject any invalid
- * configurations.
- *
- * Note: the caller should be holding i_mutex, or else be sure that they have
- * exclusive access to the inode structure.
- */
-int vfs_ioc_setflags_prepare(struct inode *inode, unsigned int oldflags,
- unsigned int flags)
-{
- /*
- * The IMMUTABLE and APPEND_ONLY flags can only be changed by
- * the relevant capability.
- *
- * This test looks nicer. Thanks to Pauline Middelink
- */
- if ((flags ^ oldflags) & (FS_APPEND_FL | FS_IMMUTABLE_FL) &&
- !capable(CAP_LINUX_IMMUTABLE))
- return -EPERM;
-
- return fscrypt_prepare_setflags(inode, oldflags, flags);
-}
-EXPORT_SYMBOL(vfs_ioc_setflags_prepare);
-
-/*
- * Generic function to check FS_IOC_FSSETXATTR values and reject any invalid
- * configurations.
- *
- * Note: the caller should be holding i_mutex, or else be sure that they have
- * exclusive access to the inode structure.
- */
-int vfs_ioc_fssetxattr_check(struct inode *inode, const struct fsxattr *old_fa,
- struct fsxattr *fa)
-{
- /*
- * Can't modify an immutable/append-only file unless we have
- * appropriate permission.
- */
- if ((old_fa->fsx_xflags ^ fa->fsx_xflags) &
- (FS_XFLAG_IMMUTABLE | FS_XFLAG_APPEND) &&
- !capable(CAP_LINUX_IMMUTABLE))
- return -EPERM;
-
- /*
- * Project Quota ID state is only allowed to change from within the init
- * namespace. Enforce that restriction only if we are trying to change
- * the quota ID state. Everything else is allowed in user namespaces.
- */
- if (current_user_ns() != &init_user_ns) {
- if (old_fa->fsx_projid != fa->fsx_projid)
- return -EINVAL;
- if ((old_fa->fsx_xflags ^ fa->fsx_xflags) &
- FS_XFLAG_PROJINHERIT)
- return -EINVAL;
- }
-
- /* Check extent size hints. */
- if ((fa->fsx_xflags & FS_XFLAG_EXTSIZE) && !S_ISREG(inode->i_mode))
- return -EINVAL;
-
- if ((fa->fsx_xflags & FS_XFLAG_EXTSZINHERIT) &&
- !S_ISDIR(inode->i_mode))
- return -EINVAL;
-
- if ((fa->fsx_xflags & FS_XFLAG_COWEXTSIZE) &&
- !S_ISREG(inode->i_mode) && !S_ISDIR(inode->i_mode))
- return -EINVAL;
-
- /*
- * It is only valid to set the DAX flag on regular files and
- * directories on filesystems.
- */
- if ((fa->fsx_xflags & FS_XFLAG_DAX) &&
- !(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode)))
- return -EINVAL;
-
- /* Extent size hints of zero turn off the flags. */
- if (fa->fsx_extsize == 0)
- fa->fsx_xflags &= ~(FS_XFLAG_EXTSIZE | FS_XFLAG_EXTSZINHERIT);
- if (fa->fsx_cowextsize == 0)
- fa->fsx_xflags &= ~FS_XFLAG_COWEXTSIZE;
-
- return 0;
-}
-EXPORT_SYMBOL(vfs_ioc_fssetxattr_check);