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If we retry opening the mountpoint and fail, we'll call
close on a filehandle w/ value -1. Rearrange so the
retry uses the same open and same error handling.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
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In the case that btrfs scrub cancel is given a device name,
we close the file handle, and then pass it to check_mounted_where()
which eventually preads from that (now closed) fd. Fix the logic
so that we close & re-open the discovered mountpoint properly.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Zach Brown <zab@redhat.com>
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If scrub start discovers that scrub is already running,
we need to set prg_fd to -1 before goto out, or we'll
try to close it again in the error path.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Zach Brown <zab@redhat.com>
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< 0 is returned for errors opening the file, this code could leak fd 0.
Signed-off-by: Zach Brown <zab@redhat.com>
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If connection fails the socket is leaked when the status file is used
instead. Close it to trivially cut down on fd use and to bring down the
noise in static code analysis.
Signed-off-by: Zach Brown <zab@redhat.com>
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Two convenient utility functions that have so far been local to scrub are
moved to utils.c.
They will be used in the device stats code in a following commit.
Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
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Scrub can be invoked to scrub only a single device of a (mounted) filesystem.
The code determines whether the given path is a mountpoint of a filesystem
by issueing a btrfs-specific ioctl to it. Only in case of EINVAL it assumed
it may be a device, all other errnos just caused it fail, but some devices
(correctly) return ENOTTY. This patch adds this to the error check.
Signed-off-by: Arne Jansen <sensille@gmx.net>
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There, 'char' is unsigned, so once assigned '-1' from getopt, it gets
the value 255. Then, it compared to '-1' gives false.
Signed-off-by: Lluis Batlle i Rossell <viric@viric.name>
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The kernel uses unsigned long long for u64, but PPC64 uses unsigned
long by default. This results in compilation warnings such as:
print-tree.c:333: warning: format '%llu' expects type 'long long
unsigned int', but argument 4 has type 'u64'
To fix this, the macro __KERNEL__ needs to be defined before including
the file <asm/types.h>. This can be done by defining the macro in
"kerncompat.h" and making it the first included file in the relevant
header files; this fixes the compiler warnings on PPC64.
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Wade Cline <clinew@linux.vnet.ibm.com>
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The function scrub_fs_info( ) closes and reopen a file handle
passed as argument, when a caller uses the file handle even after the
call.
The function scrub_fs_info( ) is updated to remove the file handle
argument, and instead uses a private own file handle.
The callers are updated to not pass the argument.
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Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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The new infrastructure offloads checking number of arguments passed to a
command to individual command handlers. Fix them up accordingly.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Separate every command group into its own file (cmds_<group>.c) and
rearrange includes. Remove btrfs_cmds.c.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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