Eric Lee / smarc-ti-linux-kernel

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Commit f46d3567b223e41e1f2faeb82d3b74a6d84fc508

Authored by Jeff Layton
Committed by Al Viro
1 parent b76d8b8226
Exists in master and in 20 other branches dlt-processor-sdk-linux-03.00.00.04, newt-ti-linux-3.12.y, processor-sdk-linux-01.00.00, processor-sdk-linux-02.00.01, smarc-ti-linux-3.12.10, smarc-ti-linux-3.12.y, smarc-ti-linux-3.14.y, smarc-ti-linux-3.15.y, smarc-ti-lsk-linux-4.1.y, smarct3x-processor-sdk-04.01.00.06, smarct3x-processor-sdk-linux-02.00.01, smarct3x-processor-sdk-linux-03.00.00.04, smarct4x-800-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-04.01.00.06, smarct4x-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-linux-03.00.00.04, ti-linux-3.12.y, ti-linux-3.14.y, ti-linux-3.15.y, ti-lsk-linux-4.1.y

vfs: fix symlinkat to retry on ESTALE errors 

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

Showing 1 changed file with 7 additions and 2 deletions Side-by-side Diff

... ... @@ -3521,12 +3521,13 @@
3521 3521 struct filename *from;
3522 3522 struct dentry *dentry;
3523 3523 struct path path;
  3524 + unsigned int lookup_flags = 0;
3524 3525  
3525 3526 from = getname(oldname);
3526 3527 if (IS_ERR(from))
3527 3528 return PTR_ERR(from);
3528   -
3529   - dentry = user_path_create(newdfd, newname, &path, 0);
  3529 +retry:
  3530 + dentry = user_path_create(newdfd, newname, &path, lookup_flags);
3530 3531 error = PTR_ERR(dentry);
3531 3532 if (IS_ERR(dentry))
3532 3533 goto out_putname;
... ... @@ -3535,6 +3536,10 @@
3535 3536 if (!error)
3536 3537 error = vfs_symlink(path.dentry->d_inode, dentry, from->name);
3537 3538 done_path_create(&path, dentry);
  3539 + if (retry_estale(error, lookup_flags)) {
  3540 + lookup_flags |= LOOKUP_REVAL;
  3541 + goto retry;
  3542 + }
3538 3543 out_putname:
3539 3544 putname(from);
3540 3545 return error;