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authorLinus Torvalds <torvalds@linux-foundation.org>2014-04-04 14:03:05 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-04-04 14:03:05 -0700
commit7df934526c0b3775613502dcd19ab6d2da8cce1e (patch)
tree01e6a4ea20c676228f4acefc6ae776d2e52072db /arch
parent3c83e61e67256e0bb08c46cc2db43b58fd617251 (diff)
parentbd42998a6bcb9b1708dac9ca9876e3d304c16f3d (diff)
downloadlinux-7df934526c0b3775613502dcd19ab6d2da8cce1e.tar.gz
Merge branch 'cross-rename' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Pull renameat2 system call from Miklos Szeredi: "This adds a new syscall, renameat2(), which is the same as renameat() but with a flags argument. The purpose of extending rename is to add cross-rename, a symmetric variant of rename, which exchanges the two files. This allows interesting things, which were not possible before, for example atomically replacing a directory tree with a symlink, etc... This also allows overlayfs and friends to operate on whiteouts atomically. Andy Lutomirski also suggested a "noreplace" flag, which disables the overwriting behavior of rename. These two flags, RENAME_EXCHANGE and RENAME_NOREPLACE are only implemented for ext4 as an example and for testing" * 'cross-rename' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: ext4: add cross rename support ext4: rename: split out helper functions ext4: rename: move EMLINK check up ext4: rename: create ext4_renament structure for local vars vfs: add cross-rename vfs: lock_two_nondirectories: allow directory args security: add flags to rename hooks vfs: add RENAME_NOREPLACE flag vfs: add renameat2 syscall vfs: rename: use common code for dir and non-dir vfs: rename: move d_move() up vfs: add d_is_dir()
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/syscalls/syscall_64.tbl1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/syscalls/syscall_64.tbl b/arch/x86/syscalls/syscall_64.tbl
index a12bddc7cce..04376ac3d9e 100644
--- a/arch/x86/syscalls/syscall_64.tbl
+++ b/arch/x86/syscalls/syscall_64.tbl
@@ -322,6 +322,7 @@
313 common finit_module sys_finit_module
314 common sched_setattr sys_sched_setattr
315 common sched_getattr sys_sched_getattr
+316 common renameat2 sys_renameat2
#
# x32-specific system call numbers start at 512 to avoid cache impact