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16 Commits

Author SHA1 Message Date
Warner Losh
2296211265 Set the erase block size properly in the case the underlying media 
doesn't advertise an erase block size.

Submitted by: bjg@
Pointy hat to: imp@
 2014-08-02 05:05:16 +00:00
Warner Losh
d48bcddafe Follow the ufs practice for disallowing permission changes as well as 
writes to files for read-only file systems. Since there are already
checks in nandfs_setattr that return an error, this moves detection of
the error earlier.
 2014-08-02 05:05:10 +00:00
Warner Losh
b65c3b8fab Fix a minor style(9) issue. 2014-08-02 05:05:05 +00:00
Warner Losh
1efe717e13 Fix typo in comment: noone -> no one. 
Fix minor style(9) nits.
 2014-07-23 16:18:51 +00:00
Konstantin Belousov
65589a29f4 Check for the cross-device cross-link attempt in the VFS, instead of 
forcing filesystem VOP_LINK() methods to repeat the code.  In
tmpfs_link(), remove redundand check for the type of the source,
already done by VFS.

Note that NFS server already performs this check before calling
VOP_LINK().

Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
 2014-07-16 14:04:46 +00:00
Warner Losh
cfe87f0076 Naughty NANDFS was using hidden unused flag, hiding the fact that the 
flag was used and wasn't really available. Change the name without
fixing any laying issues that might be present in NANDFS' use of this
flag.
 2014-07-07 23:21:07 +00:00
Warner Losh
1bbf66051b Take out the hack to write -1's to non-NAND. Always do a BIO_DELETE on 
the ranges we want to erase. This is nicer to SSDs that want TRIMs
anyway.
 2014-04-18 17:03:43 +00:00
Warner Losh
875ac64f3e More properly account for free/reserved segments to avoid deadlock or 
worse when filling up a device and then trying to erase files to make
space. Without enough space, you can't do that. Also, ensure that the
metadata writes don't generate ENOSPC. They will be retried later
since the buffers are still dirty...

Submitted by: mjg@
 2014-04-18 17:03:35 +00:00
Dimitry Andric
2de7ba0758 In sys/fs/nandfs/nandfs_vfsops.c, #if 0 an unused static function. 
MFC after:	3 days
 2014-02-15 11:42:56 +00:00
Jeff Roberson
22a722605d - Convert the bufobj lock to rwlock. 
- Use a shared bufobj lock in getblk() and inmem().
 - Convert softdep's lk to rwlock to match the bufobj lock.
 - Move INFREECNT to b_flags and protect it with the buf lock.
 - Remove unnecessary locking around bremfree() and BKGRDINPROG.

Sponsored by:	EMC / Isilon Storage Division
Discussed with:	mckusick, kib, mdf
 2013-05-31 00:43:41 +00:00
Konstantin Belousov
6b54784391 Remove the last use of the deprecated MNT_VNODE_FOREACH interface in 
the tree.

With the help from:	mjg
Tested by:	Ronald Klop <ronald-freebsd8@klop.yi.org>
MFC after:	2 weeks
 2013-01-03 19:01:56 +00:00
Attilio Rao
bc2258da88 Complete MPSAFE VFS interface and remove MNTK_MPSAFE flag. 
Porters should refer to __FreeBSD_version 1000021 for this change as
it may have happened at the same timeframe.
 2012-11-09 18:02:25 +00:00
Eitan Adler
db702c59cf remove duplicate semicolons where possible. 
Approved by:	cperciva
MFC after:	1 week
 2012-10-22 03:00:37 +00:00
Kevin Lo
6297d5d6f9 Prevent nump NULL pointer dereference in bmap_getlbns() 2012-09-11 09:38:32 +00:00
Marcel Moolenaar
e9b29d1604 Catch a corner case where ssegs could be 0 and thus i would be 0 and 
we index suinfo out of bounds (i.e. -1).

Approved by:	gber
 2012-05-28 16:33:58 +00:00
Grzegorz Bernacki
7f725bcd5c Import work done under project/nand (@235533) into head. 
The NAND Flash environment consists of several distinct components:
  - NAND framework (drivers harness for NAND controllers and NAND chips)
  - NAND simulator (NANDsim)
  - NAND file system (NAND FS)
  - Companion tools and utilities
  - Documentation (manual pages)

This work is still experimental. Please use with caution.

Obtained from: Semihalf
Supported by:  FreeBSD Foundation, Juniper Networks
 2012-05-17 10:11:18 +00:00