mirror_zfs/module/zfs
Brian Behlendorf 1efdc45ea8 Fix O_APPEND open(2) flag
As described in flags section of open(2):

  O_APPEND:
    The  file  is  opened in append mode.  Before each write(2), the
    file offset is positioned at the end of the  file,  as  if  with
    lseek(2).   O_APPEND may lead to corrupted files on NFS filesys-
    tems if more than one process appends data to a  file  at  once.
    This is because NFS does not support appending to a file, so the
    client kernel has to simulate it, which can't be done without  a
    race condition.

This issue was originally overlooked because normally the generic
VFS code handles this for a filesystem.  However, because ZFS explictly
registers a zpl_write() function it's responsible for the seek.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #3124
2015-02-24 11:21:54 -08:00
..
arc.c fix l2arc compression buffers leak 2015-02-03 16:54:16 -08:00
blkptr.c Illumos 4757, 4913 2014-08-01 14:28:05 -07:00
bplist.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
bpobj.c Illumos 4757, 4913 2014-08-01 14:28:05 -07:00
bptree.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dbuf_stats.c Skip evicting dbufs when walking the dbuf hash 2015-02-06 09:24:28 -08:00
dbuf.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
ddt_zap.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
ddt.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dmu_diff.c Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t 2014-08-06 14:48:41 -07:00
dmu_object.c Illumos 3693 - restore_object uses at least two transactions to restore an object 2014-10-21 15:26:50 -07:00
dmu_objset.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dmu_send.c Illumos 5162 - zfs recv should use loaned arc buffer to avoid copy 2014-10-21 16:32:11 -07:00
dmu_traverse.c Illumos 5311 - traverse_dnode may report success when it should not 2015-02-06 12:07:15 -08:00
dmu_tx.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dmu_zfetch.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dmu.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dnode_sync.c Illumos 5117 - spacemap reallocation can cause corruption 2014-09-08 09:42:39 -07:00
dnode.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dsl_bookmark.c Illumos 4368, 4369. 2014-07-29 10:55:29 -07:00
dsl_dataset.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dsl_deadlist.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dsl_deleg.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
dsl_destroy.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dsl_dir.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dsl_pool.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dsl_prop.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dsl_scan.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dsl_synctask.c Export symbols dsl_sync_task{_nowait} 2014-03-07 10:01:36 -08:00
dsl_userhold.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
fm.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
gzip.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
lz4.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
lzjb.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
Makefile.in Swap DTRACE_PROBE* with Linux tracepoints 2014-11-17 11:13:55 -08:00
metaslab.c Skip bad DVAs during free by setting zfs_recover=1 2015-02-13 16:02:04 -08:00
range_tree.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
refcount.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
rrwlock.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
sa.c Fix SA header size accounting 2015-02-06 09:26:46 -08:00
sha256.c Add linux sha2 support 2010-08-31 13:41:59 -07:00
spa_boot.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
spa_config.c Set zfs_autoimport_disable default value to 1 2015-02-17 16:09:41 -08:00
spa_errlog.c Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t 2014-08-06 14:48:41 -07:00
spa_history.c Use kmem_vasprintf() in log_internal() 2015-01-21 15:30:24 -08:00
spa_misc.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
spa_stats.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
spa.c Use vmem_alloc() for nvlists 2015-02-10 11:00:08 -08:00
space_map.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
space_reftree.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
trace.c Remove duplicate typedefs from trace.h 2015-01-06 16:53:24 -08:00
txg.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
uberblock.c Illumos #3598 2013-10-31 14:58:04 -07:00
unique.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
vdev_cache.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
vdev_disk.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
vdev_file.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
vdev_label.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
vdev_mirror.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
vdev_missing.c Illumos #3598 2013-10-31 14:58:04 -07:00
vdev_queue.c Revert "Pre-allocate vdev I/O buffers" 2015-01-16 14:41:28 -08:00
vdev_raidz.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
vdev_root.c Illumos #3598 2013-10-31 14:58:04 -07:00
vdev.c Revert "Don't read space maps during import for readonly pools" 2015-02-09 16:56:59 -08:00
zap_leaf.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
zap_micro.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
zap.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
zfeature_common.c Illumos 4924 - LZ4 Compression for metadata 2014-10-20 16:17:49 -07:00
zfeature.c Illumos 4370, 4371 2014-07-28 14:29:58 -07:00
zfs_acl.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
zfs_byteswap.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
zfs_ctldir.c Illumos 4368, 4369. 2014-07-29 10:55:29 -07:00
zfs_debug.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
zfs_dir.c Revert "Revert "Revert "Fix unlink/xattr deadlock""" 2014-08-11 16:12:36 -07:00
zfs_fm.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
zfs_fuid.c Illumos #3522 2013-10-30 14:51:27 -07:00
zfs_ioctl.c Use vmem_alloc() for nvlists 2015-02-10 11:00:08 -08:00
zfs_log.c Only commit the ZIL once in zpl_writepages() (msync() case). 2013-11-23 15:08:29 -08:00
zfs_onexit.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
zfs_replay.c Linux AIO Support 2014-09-05 15:11:43 -07:00
zfs_rlock.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
zfs_sa.c Revert "SA spill block cache" 2015-01-16 14:41:28 -08:00
zfs_vfsops.c Linux 3.12 compat: split shrinker has s_shrink 2015-01-20 14:07:59 -08:00
zfs_vnops.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
zfs_znode.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
zil.c Use zio buffers in zil_itx_create() 2015-02-02 11:20:41 -08:00
zio_checksum.c Illumos 4757, 4913 2014-08-01 14:28:05 -07:00
zio_compress.c Illumos 4757, 4913 2014-08-01 14:28:05 -07:00
zio_inject.c Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t 2014-08-06 14:48:41 -07:00
zio.c Retire zio_cons()/zio_dest() 2015-02-10 16:09:49 -08:00
zle.c Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
zpl_ctldir.c Fix readdir for .zfs/snapshot directory 2015-02-10 16:34:30 -08:00
zpl_export.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
zpl_file.c Fix O_APPEND open(2) flag 2015-02-24 11:21:54 -08:00
zpl_inode.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
zpl_super.c Linux 3.12 compat: split shrinker has s_shrink 2015-01-20 14:07:59 -08:00
zpl_xattr.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
zrlock.c Remove duplicate typedefs from trace.h 2015-01-06 16:53:24 -08:00
zvol.c Handle closing an unopened ZVOL 2015-01-30 14:44:14 -08:00