Before freeing the memory for an Extent object, the extent must
be removed from all of the extent skip lists. Otherwise, the
lists will be corrupted.
Change-Id: I891321477b9f0e194544e9e73dad53473f0865b4
Reviewed-on: http://gerrit.openafs.org/7518
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Both AFSExtentsSupport.cpp and AFSIoSupport.cpp provided
NextExtent() implementations. The AFSExtentsSupport version was
more general. Use that one for both modules.
Change-Id: I19d17c989b4eadd40dcbb3d6d4186c316c26577e
Reviewed-on: http://gerrit.openafs.org/7517
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
In cm_RecycleSCache cm_GetVolumeByFID can fail leaving 'volp'
a NULL pointer. Do not call cm_PutVolume() if cm_GetVolumeByFID
fails.
Change-Id: I57eaf5d40130ecad75a312ef5487cdfa6e7367e3
Reviewed-on: http://gerrit.openafs.org/7506
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Add a NonPaged ERESOURCE object to the AFS_CCB structure for
use in synchronizing access to the Ccb->Flags field and the
construction of Directory Snapshots.
Change-Id: I10ecc95619d0e5bd1ca02b044c2f1541a1b9a9f0
Reviewed-on: http://gerrit.openafs.org/7478
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
AFSPrimaryVolumeWorkerThread() holds VolumeCB->VolumeLock SHARED
across the call to AFSCleanupFcb() -> CcPurgeCacheSection().
If a filter driver such as Sophos (savonaccessfilter.sys ->
savonaccesscontrol.sys) triggers an AFSCreate() in response to
the cache section being purged that will force the evaluation of
the file path by AFSLocateNameEntry(). If the path contains a
mount point that requires validation, AFSBuildMountPointTarget()
is called which in turn required the VolumeCB->VolumeLock EXCL.
AFSBuildMountPointTarget() only requires the VolumeCB->VolumeLock
if the VolumeCB->RootFcb == NULL. That should only be true if
the VolumeCB was allocated by AFSInitVolume() or under very rare
race conditions.
This patchset refactors AFSInitVolume() to ensure that it holds
an extra VolumeCB->VolumeReferenceCount reference. This reference
is used to assist in the refactoring of AFSBuildRootVolume() and
AFSBuildMountPointTarget() to avoid races with volume root object
invalidation as well as permitting the VolumeCB->VolumeLock to
be ignored in the common case.
Avoiding the acquisition of VolumeCB->VolumeLock during mount
point target evaluation has the additional benefit of reducing
lock contention during path evaluation.
FIXES 130812
Change-Id: Id9b0dcc2bfd91277d522f3724893b60ce4d947f5
Reviewed-on: http://gerrit.openafs.org/7474
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Peter Scott <pscott@kerneldrivers.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Commit 9efc255a makes the numBuffBytes variable unnecessary.
Remove it to clear up an "unused but set" warning.
Change-Id: Ifc50c40542e008d76007c76a9ce146fe6ebab4be
Reviewed-on: http://gerrit.openafs.org/7504
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
end_writeback() is renamed to clear_inode(). Add a configure test
and cope.
Change-Id: Icaf5b6b54d0ee377fabcf0b295d690eaa6b4be5e
Reviewed-on: http://gerrit.openafs.org/7503
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
In afs_FlushVCache, when we QueueVCB, we might drop the afs_xvcache
lock (as of 76158df491). The vcache may
still be on the DNLC, so a lookup while xvcache is dropped can cause
someone else to grab a reference to the vcache while it is being
flushed. This can cause panics and failed assertions, since someone
will have a reference to the flushed vcache, which is effectively
freed and many of the structure fields are no longer valid.
So instead, do not call QueueVCB until we have purged the vcache from
the DNLC.
Change-Id: Ia6b51b4a2bb26903346217fbd6fc7d959d87eae7
Reviewed-on: http://gerrit.openafs.org/7430
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
malloc() returns a (void *) on all of our current platforms. So,
don't bother casting the return value before assigning it - it is
unnecessary noise.
Change-Id: Idc5f098a20809a5f869c4ea9f3970e598520c0e9
Reviewed-on: http://gerrit.openafs.org/7468
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
malloc() returns a (void *) on all of our current platforms. So,
don't bother casting the return value before assigning it - it is
unnecessary noise.
Change-Id: Ie328ebd2d31160bf07b86b760fbb5ce7108a532d
Reviewed-on: http://gerrit.openafs.org/7473
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
malloc() returns a (void *) on all of our current platforms. So,
don't bother casting the return value before assigning it - it is
unnecessary noise.
Change-Id: I8287709413fe0e34f417936d1fc64c421fea6d28
Reviewed-on: http://gerrit.openafs.org/7472
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
malloc() returns a (void *) on all of our current platforms. So,
don't bother casting the return value before assigning it - it is
unnecessary noise.
Change-Id: I6a33ab25b092faa96c764f0a469d052c181344ee
Reviewed-on: http://gerrit.openafs.org/7471
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
malloc() returns a (void *) on all of our current platforms. So,
don't bother casting the return value before assigning it - it is
unnecessary noise.
Change-Id: I58b7695e3cf4b99f17869a46e1efca5c7daf6ff7
Reviewed-on: http://gerrit.openafs.org/7470
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
malloc() returns a (void *) on all of our current platforms. So,
don't bother casting the return value before assigning it - it is
unnecessary noise.
Change-Id: Iaddc6c44041dc77a576f32133b2aa80aefce5cb2
Reviewed-on: http://gerrit.openafs.org/7469
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
malloc() returns a (void *) on all of our current platforms. So,
don't bother casting the return value before assigning it - it is
unnecessary noise.
Change-Id: Ie41f7b831f0ba70796649e2493e014fe44f1c39e
Reviewed-on: http://gerrit.openafs.org/7467
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
malloc() and osi_Alloc both return (void *). So, don't bother
casting the return value before assigning it - its unnecessary
noise.
Change-Id: I71a66a8fa0d9f49f4833dd77bbb55422e6f20d6f
Reviewed-on: http://gerrit.openafs.org/7466
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
malloc() returns a (void *) on all of our current platforms. So,
don't bother casting the return value before assigning it - it's
unecessary noise.
Change-Id: I270b81c239afb9ac4bd8121adfd5a48fcfac9c3b
Reviewed-on: http://gerrit.openafs.org/7465
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
malloc() returns a (void *) on all of our current platforms. So,
don't bother casting the return value before assigning it - it's
unecessary noise.
Change-Id: I74b1f3ba3000ecaeb3da8eb3201f6050c9972c4e
Reviewed-on: http://gerrit.openafs.org/7464
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
malloc() returns a (void *) on all of our current platforms. So,
don't bother casting the return value before assigning it - it's
unecessary noise.
Change-Id: I5a7c800e2836e7401f5f8bccf1aa2a1b223100b7
Reviewed-on: http://gerrit.openafs.org/7463
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
malloc() returns a (void *) on all of our current platforms. So,
don't bother casting the return value before assigning it - it's
unecessary noise.
Change-Id: I9a3387c07c6ee02efbaa1ec0035fcea8691f171c
Reviewed-on: http://gerrit.openafs.org/7462
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
malloc() returns a (void *) on all of our current platforms. So,
don't bother casting the return value before assigning it - it's
unecessary noise.
Change-Id: I9d41f2f1aee03d9317b4c5780fb00e13d30b0821
Reviewed-on: http://gerrit.openafs.org/7461
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
malloc() returns a (void *) on all of our current platforms. So,
don't bother casting the return value before assigning it - it's
unecessary noise.
Change-Id: I6a878d53007e27179c11d8f745b09dacade4c83d
Reviewed-on: http://gerrit.openafs.org/7460
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
malloc() returns a (void *) on all of our current platforms. So,
don't bother casting the return value before assigning it - it's
unecessary noise.
Change-Id: If6f0dbc00b31f5d9a1622984c6ac9eba83c04900
Reviewed-on: http://gerrit.openafs.org/7459
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
malloc() returns a (void *) on all of our current platforms. So,
don't bother casting the return value before assigning it - it's
unecessary noise.
Change-Id: I534d424da13e03d3c0f0de3dddf1dd19088d1659
Reviewed-on: http://gerrit.openafs.org/7458
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
All of our allocators return (void *) values, so there is no need
to cast the returns - doing so is just noise.
Change-Id: I6b1009efbb5034225a4af0e19d03b74c628dfb82
Reviewed-on: http://gerrit.openafs.org/7457
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
calloc returns a (void *) argument. So we don't need to cast its
output before storing it.
Change-Id: Ibdfc61a8a2cf9779a0bfb17ff8ebf1f3bef3ea0e
Reviewed-on: http://gerrit.openafs.org/7456
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
realloc takes, and returns a (void *) argument. So we don't need to
cast these parameters into, or out of, realloc. Doing so is just
noise, so don't bother.
Change-Id: I64e721703536515b2e315e3b033eb2be14f7e18c
Reviewed-on: http://gerrit.openafs.org/7455
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Rather than doing
a = malloc(sizeof(me));
memset(a, 0, sizeof(me));
Just use
a = calloc(1, sizeof(me));
This is simpler, shorter, and removes the potential for the size of
the memset not matching the size of the malloc (or the target of the
memset being wrong!)
Where the size is of the form (n * sizeof(me)), we also use
calloc(n, sizeof(me));
Change-Id: Ia0f75665c1031fd2982eee0e1d8c8ebe23d7fbc0
Reviewed-on: http://gerrit.openafs.org/7454
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
free(3) is defined as:
void free(void *ptr);
so there is no need to cast the pointer argument being past to it to
(char *), (void *), or whatever other randomness happened to be floating
through the author's mind. Remove all such casts, as they are just
noise.
Change-Id: Ib7c8c259d53e9ce74fc486cb0997360044795395
Reviewed-on: http://gerrit.openafs.org/7453
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Instead of allocing a maximal string, and using snprintf to
construct each possible DNS search string, just use asprintf to
construct each string. This greatly simplifies the code, and makes
it much less likely that maths errors can creep in causing buffer
overflows in the future. The downside is that we have more round
trips to the allocator, but that shouldn't matter in this context.
Change-Id: Iae9ab7d45f454c90a937354c71c9ec7fa2c55b69
Reviewed-on: http://gerrit.openafs.org/7452
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Rather than using something along the lines of
strOut = malloc(strlen(strA) + strlen(strB) + strlen(strC) + 1);
strcpy(strOut, strA);
strcat(strOut, strB);
strcat(strOut, strC);
use asprintf for string construction, so we can just write
asprintf(&strOut, "%s%s%s", strA, strB, strC);
roken provides an implementation of asprintf for platforms which are
missing one.
Change-Id: Ieef9f4b65f72260c0d372cdf3865daab98733ad9
Reviewed-on: http://gerrit.openafs.org/7451
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Where we have
newStr = malloc(strlen(oldStr)+1);
strcpy(newStr, oldStr);
replace these with
newStr = strdup(oldStr);
It's shorter, clearer, and gets rid of a load of occurences of strcpy,
which some compilers are now warning is unsafe (although it isn't in
this context)
Get rid of a number of custom duplicate string functions and replace
them with strdup where the behaviour is identical
Change-Id: If800343a7d13b1ba6362d4570a2a324fa3525250
Reviewed-on: http://gerrit.openafs.org/7450
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
A fakestat value of 1 is for -fakestat-all, and 2 is for -fakestat,
not the other way around.
Change-Id: Iedfb7b4a5223c809ace5b5f704a671e8523eb53a
Reviewed-on: http://gerrit.openafs.org/7445
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
cmd_OptionAsInt will return 0 if the requested option is present and
valid.
Change-Id: Ie5154648ccb274b04617dcb8cc397ed3aa3d97e6
Reviewed-on: http://gerrit.openafs.org/7444
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
memcache doesn't make use of fullpn_DCacheFile, fullpn_VolInfoFile,
etc. Do not even try to generate these strings for memcache, since
cacheBaseDir will be NULL, and so this can cause a segfault on some
platforms including Solaris.
Change-Id: I0decdb9a8866272adf500125af7edb03c98e6bdc
Reviewed-on: http://gerrit.openafs.org/7442
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Add some comments to try and help explain the meaning of the
'needvalid' parameter to GetDSlot, added in
1a672914ab.
Change-Id: I4f1c704fa131df07e671f46b1b7575fbf607fce4
Reviewed-on: http://gerrit.openafs.org/7429
Tested-by: Andrew Deason <adeason@sinenomine.net>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
needvalid will always be 1 for the memory cache -- i.e. the slots are
always valid. see change id I53ea6e99649e4d6d5cbde58929dfcee1d45a3e7b.
Change-Id: Id1294d54cb5f20d226258e5da39fb4d4f782a694
Reviewed-on: http://gerrit.openafs.org/7421
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Alistair Ferguson <alistair.ferguson@mac.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
If an error occurs during convertROtoRW, the volume lock may
not be released.
Change-Id: Ic03af00676de836cade4e39a743b234a0dc9b6cf
Reviewed-on: http://gerrit.openafs.org/7389
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Alistair Ferguson <alistair.ferguson@mac.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
vos convertROtoRW was not checking the return code from
ubik_VL_SetLock().
Change-Id: I651c543f9a0070a9d34d9cca7583437e50e95dc8
Reviewed-on: http://gerrit.openafs.org/7388
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Alistair Ferguson <alistair.ferguson@mac.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Cannot call AFSPerformObjectInvalidate directly because
ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.TreeLock is
held during the sequence
AFSVerifyEntry->AFSValidateDirectoryCache->AFSVerifyDirectoryContent
and AFSPerformObjectInvalidate requires the Fcb->NPFcb->Resource
which must be held prior to the TreeLock.
Change-Id: I337f52e2927c8e5ae2d218867987625c3240a792
Reviewed-on: http://gerrit.openafs.org/7423
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
buf_InsertToRedirQueue, buf_RemoveFromRedirQueue, and
buf_MoveToHeadOfRedirQueue can be passed a NULL cm_scache_t pointer.
If the pointer is NULL (as is the case during buf_Init() processing)
the scp->redirMx must not be obtained or a crash will occur.
Change-Id: I157091afd973a8b4789976c42de253831a2698a3
Reviewed-on: http://gerrit.openafs.org/7422
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Provide consistency between the SMB path parser and the AFS
redirector path processing by using the same constant, MAX_FID_COUNT,
for both. MAX_FID_COUNT is the maximum number of unique file ids
that can exist in a path after all mount points and symlinks have
been expanded. The current value is 512.
Change-Id: Ife1a29ce7c064c986589bc9e2836899864da2f76
Reviewed-on: http://gerrit.openafs.org/7412
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
If there are extents with a non-zero ActiveCount when AFSTearDownExtents()
is executed, it must leave them alone and attached to the File Control
Block. This has implications for its callers, especially AFSCleanupFcb()
since it may be the case that a Cleanup cannot be completed.
The AFSPrimaryVolumeWorker thread must therefore check after calling
AFSCleanupFcb() whether or not the Fcb ExtentCount is zero before
calling AFSRemoveFcb().
Change-Id: I164dbe24d2bfe69aba0fcb5d845f66415d5bb0c3
Reviewed-on: http://gerrit.openafs.org/7406
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
