A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 11:41:38 -04:00
Code Issues Projects Releases Packages Wiki Activity

locks: break delegations on any attribute modification

Browse source 
NFSv4 uses leases to guarantee that clients can cache metadata as well
as data.

Cc: Mikulas Patocka <[email protected]>
Cc: David Howells <[email protected]>
Cc: Tyler Hicks <[email protected]>
Cc: Dustin Kirkland <[email protected]>
Acked-by: Jeff Layton <[email protected]>
Signed-off-by: J. Bruce Fields <[email protected]>
Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
J. Bruce Fields 2011-09-20 17:19:26 -04:00 • committed by Al Viro
commit 27ac0ffeac
10 changed files with 69 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

9
fs/utimes.c
View file

@ -53,6 +53,7 @@ static int utimes_common(struct path *path, struct timespec *times)
int error;
struct iattr newattrs;
struct inode *inode = path->dentry->d_inode;
struct inode *delegated_inode = NULL;
error = mnt_want_write(path->mnt);
if (error)
@ -101,9 +102,15 @@ static int utimes_common(struct path *path, struct timespec *times)
goto mnt_drop_write_and_out;
}
}
retry_deleg:
mutex_lock(&inode->i_mutex);
error = notify_change(path->dentry, &newattrs);
error = notify_change(path->dentry, &newattrs, &delegated_inode);
mutex_unlock(&inode->i_mutex);
if (delegated_inode) {
error = break_deleg_wait(&delegated_inode);
if (!error)
goto retry_deleg;
}
mnt_drop_write_and_out:
mnt_drop_write(path->mnt);