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Resolving path of / is crucial for realpath() to work properly.
Change-Id: I8a1b482beba37f01afbd20446d9e6f6125f2ec34
BUG: 953694
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/4872
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Add support for chdir, fchdir, getcwd, realpath equivalents in
GFAPI. These are required for the Samba VFS plugin.
Change-Id: I91d2db9146994403c98961c489c7640c51d5add2
BUG: 953694
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/4853
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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The current way of calling dict_destroy() at the end of an API fop assumes
that xattr_req is not stored/ref'd by any translators in the stack. However
when translators like DHT store xattr_req in dht_local_t with a dict_ref()
and perform dict_unref() in the unwind path, things get subject to a race.
The race is between the woken up thread (by syncop_wake) i.e, the gfapi
invoking thread and the thread where the FOP was unwound. As the C stack
of STACK_UNWIND unwinds back, dht_local_unref() gets invoked within the
DHT_STACK_UNWIND macro. This thread attempts dict_unref, which would
be "safe" if it wins the race against the gfapi invoking thread. However
if the gfapi invoking thread wins the race, it will perform dict_destroy()
first and therefore make dict_unref() within dht_local_unref perform
a double free.
This is the embarrassing on-screen bug which showed up in a roomful of people
during the gluster dev summit demo of qemu/libgfapi integration.
Change-Id: I284c93de87cdc128d5801f42c84aa87f753090d4
BUG: 839950
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/4644
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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Change-Id: I78d63b39dde14a9a32ea197cf0dedeb5695b35c9
BUG: 839950
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/4021
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Amar Tumballi <amarts@redhat.com>
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* the issue is happening because the resolve_symlink() logic was
reversed
Change-Id: I10eca14d82e3ebf5a0195d5db1330f9e1a3e2dc4
Signed-off-by: Amar Tumballi <amarts@redhat.com>
BUG: 839950
Reviewed-on: http://review.gluster.org/3978
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
Reviewed-by: Anand Avati <avati@redhat.com>
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- new internal API glfs_lresolve() for usage with APIs
like glfs_lXXXX() (e.g. glfs_lstat())
Change-Id: I61c60af6bda3072f189684ad8ac9815d59f455fc
BUG: 839950
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/3866
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Amar Tumballi <amarts@redhat.com>
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Change-Id: Ie4cbcf91b58218bebf23cf951c313aceeb29f311
BUG: 839950
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.com/3664
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Reviewed-by: Bharata B Rao <bharata.rao@gmail.com>
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