forked from Minki/linux
40f06c7995
- Create a generic copy_file_range handler and make individual
filesystems responsible for calling it (i.e. no more assuming that
do_splice_direct will work or is appropriate)
- Refactor copy_file_range and remap_range parameter checking where they
are the same
- Install missing copy_file_range parameter checking(!)
- Remove suid/sgid and update mtime like any other file write
- Change the behavior so that a copy range crossing the source file's
eof will result in a short copy to the source file's eof instead of
EINVAL
- Permit filesystems to decide if they want to handle cross-superblock
copy_file_range in their local handlers.
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Merge tag 'copy-file-range-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull copy_file_range updates from Darrick Wong:
"This fixes numerous parameter checking problems and inconsistent
behaviors in the new(ish) copy_file_range system call.
Now the system call will actually check its range parameters
correctly; refuse to copy into files for which the caller does not
have sufficient privileges; update mtime and strip setuid like file
writes are supposed to do; and allows copying up to the EOF of the
source file instead of failing the call like we used to.
Summary:
- Create a generic copy_file_range handler and make individual
filesystems responsible for calling it (i.e. no more assuming that
do_splice_direct will work or is appropriate)
- Refactor copy_file_range and remap_range parameter checking where
they are the same
- Install missing copy_file_range parameter checking(!)
- Remove suid/sgid and update mtime like any other file write
- Change the behavior so that a copy range crossing the source file's
eof will result in a short copy to the source file's eof instead of
EINVAL
- Permit filesystems to decide if they want to handle
cross-superblock copy_file_range in their local handlers"
* tag 'copy-file-range-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
fuse: copy_file_range needs to strip setuid bits and update timestamps
vfs: allow copy_file_range to copy across devices
xfs: use file_modified() helper
vfs: introduce file_modified() helper
vfs: add missing checks to copy_file_range
vfs: remove redundant checks from generic_remap_checks()
vfs: introduce generic_file_rw_checks()
vfs: no fallback for ->copy_file_range
vfs: introduce generic_copy_file_range()
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| .. | ||
| libxfs | ||
| scrub | ||
| Kconfig | ||
| kmem.c | ||
| kmem.h | ||
| Makefile | ||
| mrlock.h | ||
| xfs_acl.c | ||
| xfs_acl.h | ||
| xfs_aops.c | ||
| xfs_aops.h | ||
| xfs_attr_inactive.c | ||
| xfs_attr_list.c | ||
| xfs_bmap_item.c | ||
| xfs_bmap_item.h | ||
| xfs_bmap_util.c | ||
| xfs_bmap_util.h | ||
| xfs_buf_item.c | ||
| xfs_buf_item.h | ||
| xfs_buf.c | ||
| xfs_buf.h | ||
| xfs_dir2_readdir.c | ||
| xfs_discard.c | ||
| xfs_discard.h | ||
| xfs_dquot_item.c | ||
| xfs_dquot_item.h | ||
| xfs_dquot.c | ||
| xfs_dquot.h | ||
| xfs_error.c | ||
| xfs_error.h | ||
| xfs_export.c | ||
| xfs_export.h | ||
| xfs_extent_busy.c | ||
| xfs_extent_busy.h | ||
| xfs_extfree_item.c | ||
| xfs_extfree_item.h | ||
| xfs_file.c | ||
| xfs_filestream.c | ||
| xfs_filestream.h | ||
| xfs_fsmap.c | ||
| xfs_fsmap.h | ||
| xfs_fsops.c | ||
| xfs_fsops.h | ||
| xfs_globals.c | ||
| xfs_health.c | ||
| xfs_icache.c | ||
| xfs_icache.h | ||
| xfs_icreate_item.c | ||
| xfs_icreate_item.h | ||
| xfs_inode_item.c | ||
| xfs_inode_item.h | ||
| xfs_inode.c | ||
| xfs_inode.h | ||
| xfs_ioctl32.c | ||
| xfs_ioctl32.h | ||
| xfs_ioctl.c | ||
| xfs_ioctl.h | ||
| xfs_iomap.c | ||
| xfs_iomap.h | ||
| xfs_iops.c | ||
| xfs_iops.h | ||
| xfs_itable.c | ||
| xfs_itable.h | ||
| xfs_linux.h | ||
| xfs_log_cil.c | ||
| xfs_log_priv.h | ||
| xfs_log_recover.c | ||
| xfs_log.c | ||
| xfs_log.h | ||
| xfs_message.c | ||
| xfs_message.h | ||
| xfs_mount.c | ||
| xfs_mount.h | ||
| xfs_mru_cache.c | ||
| xfs_mru_cache.h | ||
| xfs_ondisk.h | ||
| xfs_pnfs.c | ||
| xfs_pnfs.h | ||
| xfs_qm_bhv.c | ||
| xfs_qm_syscalls.c | ||
| xfs_qm.c | ||
| xfs_qm.h | ||
| xfs_quota.h | ||
| xfs_quotaops.c | ||
| xfs_refcount_item.c | ||
| xfs_refcount_item.h | ||
| xfs_reflink.c | ||
| xfs_reflink.h | ||
| xfs_rmap_item.c | ||
| xfs_rmap_item.h | ||
| xfs_rtalloc.c | ||
| xfs_rtalloc.h | ||
| xfs_stats.c | ||
| xfs_stats.h | ||
| xfs_super.c | ||
| xfs_super.h | ||
| xfs_symlink.c | ||
| xfs_symlink.h | ||
| xfs_sysctl.c | ||
| xfs_sysctl.h | ||
| xfs_sysfs.c | ||
| xfs_sysfs.h | ||
| xfs_trace.c | ||
| xfs_trace.h | ||
| xfs_trans_ail.c | ||
| xfs_trans_bmap.c | ||
| xfs_trans_buf.c | ||
| xfs_trans_dquot.c | ||
| xfs_trans_extfree.c | ||
| xfs_trans_inode.c | ||
| xfs_trans_priv.h | ||
| xfs_trans_refcount.c | ||
| xfs_trans_rmap.c | ||
| xfs_trans.c | ||
| xfs_trans.h | ||
| xfs_xattr.c | ||
| xfs.h | ||