diff options
Diffstat (limited to 'fs/nfsd')
| -rw-r--r-- | fs/nfsd/nfs4state.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 9890d957c838..cd2a43d48939 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -192,8 +192,15 @@ static void nfs4_file_put_fd(struct nfs4_file *fp, int oflag) static void __nfs4_file_put_access(struct nfs4_file *fp, int oflag) { if (atomic_dec_and_test(&fp->fi_access[oflag])) { - nfs4_file_put_fd(fp, O_RDWR); nfs4_file_put_fd(fp, oflag); + /* + * It's also safe to get rid of the RDWR open *if* + * we no longer have need of the other kind of access + * or if we already have the other kind of open: + */ + if (fp->fi_fds[1-oflag] + || atomic_read(&fp->fi_access[1 - oflag]) == 0) + nfs4_file_put_fd(fp, O_RDWR); } } @@ -3530,8 +3537,9 @@ static inline void nfs4_file_downgrade(struct nfs4_stateid *stp, unsigned int to int i; for (i = 1; i < 4; i++) { - if (test_bit(i, &stp->st_access_bmap) && !(i & to_access)) { - nfs4_file_put_access(stp->st_file, i); + if (test_bit(i, &stp->st_access_bmap) + && ((i & to_access) != i)) { + nfs4_file_put_access(stp->st_file, nfs4_access_to_omode(i)); __clear_bit(i, &stp->st_access_bmap); } } |