freebsd-nq/sys/fs
Ed Schouten 99d57a6bd8 Add support for whiteouts on tmpfs.
Right now unionfs only allows filesystems to be mounted on top of
another if it supports whiteouts. Even though I have sent a patch to
daichi@ to let unionfs work without it, we'd better also add support for
whiteouts to tmpfs.

This patch implements .vop_whiteout and makes necessary changes to
lookup() and readdir() to take them into account. We must also make sure
that when adding or removing a file, we honour the componentname's
DOWHITEOUT and ISWHITEOUT, to prevent duplicate filenames.

MFC after:	1 month
2010-08-22 05:36:06 +00:00
..
cd9660 Revert the previous commit. The race is not applicable to the lockmgr 2010-07-16 19:52:03 +00:00
coda Properly bounds check ioctl/pioctl data arguments for Coda: 2010-08-07 08:08:14 +00:00
deadfs Add function vop_rename_fail(9) that performs needed cleanup for locks 2010-04-02 14:03:01 +00:00
devfs Add dedicated routines to toggle lockmgr flags such as LK_NOSHARE and 2010-08-20 19:46:50 +00:00
ext2fs Move checking against RLIMIT_FSIZE into one place, vn_rlimit_fsize(). 2010-05-05 16:44:25 +00:00
fdescfs Fix a long standing regression of readdir(3) in fdescfs(5) introduced 2010-03-16 19:59:14 +00:00
fifofs
hpfs
msdosfs Style fixes and removal of unneeded variable. 2010-05-06 18:43:19 +00:00
nfs Modify the return value for nfscl_mustflush() from boolean_t, 2010-08-03 01:49:28 +00:00
nfsclient Add dedicated routines to toggle lockmgr flags such as LK_NOSHARE and 2010-08-20 19:46:50 +00:00
nfsserver Patch the experimental NFSv4 server so that it acquires a reference 2010-07-16 23:17:05 +00:00
ntfs Fix ntfs such that it understand media with a non-512-bytes sector size: 2009-12-07 15:15:08 +00:00
nullfs Disable bypass for the vop_advlockpurge(). The vop is called after 2010-05-16 05:00:29 +00:00
nwfs Add dedicated routines to toggle lockmgr flags such as LK_NOSHARE and 2010-08-20 19:46:50 +00:00
portalfs
procfs fix a few cases where a string is passed via format argument instead of 2010-06-11 19:27:21 +00:00
pseudofs Add dedicated routines to toggle lockmgr flags such as LK_NOSHARE and 2010-08-20 19:46:50 +00:00
smbfs Add dedicated routines to toggle lockmgr flags such as LK_NOSHARE and 2010-08-20 19:46:50 +00:00
tmpfs Add support for whiteouts on tmpfs. 2010-08-22 05:36:06 +00:00
udf Revert the previous commit. The race is not applicable to the lockmgr 2010-07-16 19:52:03 +00:00
unionfs Fix build. 2010-07-18 07:55:22 +00:00