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new helpers: fh_{want,drop}_write()

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A bunch of places in nfsd does mnt_{want,drop}_write on vfsmount of
export of given fhandle.  Switched to obvious inlined helpers...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2011-11-23 12:03:18 -05:00
parent a561be7100
commit bad0dcffc2
3 changed files with 29 additions and 19 deletions
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4
fs/nfsd/nfs4proc.c
View file

@ -838,7 +838,7 @@ nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
return status;
}
}
status = mnt_want_write(cstate->current_fh.fh_export->ex_path.mnt);
status = fh_want_write(&cstate->current_fh);
if (status)
return status;
status = nfs_ok;
@ -856,7 +856,7 @@ nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
status = nfsd_setattr(rqstp, &cstate->current_fh, &setattr->sa_iattr,
0, (time_t)0);
out:
mnt_drop_write(cstate->current_fh.fh_export->ex_path.mnt);
fh_drop_write(&cstate->current_fh);
return status;
}