openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

[PATCH] nfsd4: fix struct file leak 

We were failing to close on an error path, resulting in a leak of struct files
which could take a v4 server down fairly quickly....  So call
nfs4_close_delegation instead of just open-coding parts of it.

Simplify the cleanup on delegation failure while we're at it.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
NeilBrown 2005-04-16 15:26:38 -07:00 committed by Linus Torvalds
parent f1ee4f22f2
commit c907132d53
1 changed files with 3 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
fs/nfsd/nfs4state.c
View File

@ -190,7 +190,8 @@ nfs4_close_delegation(struct nfs4_delegation *dp)
dp->dl_vfs_file = NULL;
/* The following nfsd_close may not actually close the file,
* but we want to remove the lease in any case. */
setlease(filp, F_UNLCK, &dp->dl_flock);
if (dp->dl_flock)
setlease(filp, F_UNLCK, &dp->dl_flock);
nfsd_close(filp);
vfsclose++;
}
@ -1673,10 +1674,7 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open, struct nfs4_sta
if ((status = setlease(stp->st_vfs_file,
flag == NFS4_OPEN_DELEGATE_READ? F_RDLCK: F_WRLCK, &flp))) {
dprintk("NFSD: setlease failed [%d], no delegation\n", status);
list_del(&dp->dl_del_perfile);
list_del(&dp->dl_del_perclnt);
nfs4_put_delegation(dp);
free_delegation++;
unhash_delegation(dp);
flag = NFS4_OPEN_DELEGATE_NONE;
goto out;
}