Merge tag 'v6.11-rc2' into media_stage

Linux 6.11-rc2

* tag 'v6.11-rc2': (283 commits)
  Linux 6.11-rc2
  profiling: remove profile=sleep support
  arm: dts: arm: versatile-ab: Fix duplicate clock node name
  runtime constants: deal with old decrepit linkers
  clocksource: Fix brown-bag boolean thinko in cs_watchdog_read()
  cifs: update internal version number
  smb: client: fix FSCTL_GET_REPARSE_POINT against NetApp
  smb3: add dynamic tracepoints for shutdown ioctl
  cifs: Remove cifs_aio_ctx
  smb: client: handle lack of FSCTL_GET_REPARSE_POINT support
  arm64: jump_label: Ensure patched jump_labels are visible to all CPUs
  syscalls: fix syscall macros for newfstat/newfstatat
  uretprobe: change syscall number, again
  thermal: core: Update thermal zone registration documentation
  Revert "nouveau: rip out busy fence waits"
  protect the fetch of ->fd[fd] in do_dup2() from mispredictions
  x86/uaccess: Zero the 8-byte get_range case on failure on 32-bit
  riscv: Fix linear mapping checks for non-contiguous memory regions
  KVM: x86/mmu: fix determination of max NPT mapping level for private pages
  PCI: pciehp: Retain Power Indicator bits for userspace indicators
  ...

1 files changed, 17 insertions, 2 deletions

diff --git a/fs/smb/client/reparse.h b/fs/smb/client/reparse.h
index 6b55d1df9e2f..2c0644bc4e65 100644
--- a/fs/smb/client/reparse.h
+++ b/fs/smb/client/reparse.h
@@ -12,6 +12,12 @@
 #include "fs_context.h"
 #include "cifsglob.h"
 
+/*
+ * Used only by cifs.ko to ignore reparse points from files when client or
+ * server doesn't support FSCTL_GET_REPARSE_POINT.
+ */
+#define IO_REPARSE_TAG_INTERNAL ((__u32)~0U)
+
 static inline dev_t reparse_nfs_mkdev(struct reparse_posix_data *buf)
 {
 	u64 v = le64_to_cpu(*(__le64 *)buf->DataBuffer);
@@ -78,10 +84,19 @@ static inline u32 reparse_mode_wsl_tag(mode_t mode)
 static inline bool reparse_inode_match(struct inode *inode,
 				       struct cifs_fattr *fattr)
 {
+	struct cifsInodeInfo *cinode = CIFS_I(inode);
 	struct timespec64 ctime = inode_get_ctime(inode);
 
-	return (CIFS_I(inode)->cifsAttrs & ATTR_REPARSE) &&
-		CIFS_I(inode)->reparse_tag == fattr->cf_cifstag &&
+	/*
+	 * Do not match reparse tags when client or server doesn't support
+	 * FSCTL_GET_REPARSE_POINT.  @fattr->cf_cifstag should contain correct
+	 * reparse tag from query dir response but the client won't be able to
+	 * read the reparse point data anyway.  This spares us a revalidation.
+	 */
+	if (cinode->reparse_tag != IO_REPARSE_TAG_INTERNAL &&
+	    cinode->reparse_tag != fattr->cf_cifstag)
+		return false;
+	return (cinode->cifsAttrs & ATTR_REPARSE) &&
 		timespec64_equal(&ctime, &fattr->cf_ctime);
 }