diff options
Diffstat (limited to 'module/zfs/zfs_vnops.c')
| -rw-r--r-- | module/zfs/zfs_vnops.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/module/zfs/zfs_vnops.c b/module/zfs/zfs_vnops.c index 8229bc9a9..170e392ab 100644 --- a/module/zfs/zfs_vnops.c +++ b/module/zfs/zfs_vnops.c @@ -85,6 +85,7 @@ zfs_fsync(znode_t *zp, int syncflag, cred_t *cr) static int zfs_holey_common(znode_t *zp, ulong_t cmd, loff_t *off) { + zfs_locked_range_t *lr; uint64_t noff = (uint64_t)*off; /* new offset */ uint64_t file_sz; int error; @@ -100,12 +101,18 @@ zfs_holey_common(znode_t *zp, ulong_t cmd, loff_t *off) else hole = B_FALSE; + /* Flush any mmap()'d data to disk */ + if (zn_has_cached_data(zp)) + zn_flush_cached_data(zp, B_FALSE); + + lr = zfs_rangelock_enter(&zp->z_rangelock, 0, file_sz, RL_READER); error = dmu_offset_next(ZTOZSB(zp)->z_os, zp->z_id, hole, &noff); + zfs_rangelock_exit(lr); if (error == ESRCH) return (SET_ERROR(ENXIO)); - /* file was dirty, so fall back to using generic logic */ + /* File was dirty, so fall back to using generic logic */ if (error == EBUSY) { if (hole) *off = file_sz; |