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In changes to come this will be possible for an INTERNAL_OPEN_ONLY.
The protection was already in place for some code paths, this
makes the coverage compete.
Bug 10564 - Lock order violation and file lost
https://bugzilla.samba.org/show_bug.cgi?id=10564
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Never map copy-chunk(len=0) requests to BTRFS_IOC_CLONE_RANGE ioctls. A
BTRFS_IOC_CLONE_RANGE with @src_length=0 results in a clone of all data
from @src_offset->EOF!
BUG: https://bugzilla.samba.org/show_bug.cgi?id=10424
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Plumb into the get_fs_capabilities code path to advertise the
FILE_FILE_COMPRESSION attribute.
Also, document file compression support in the VFS btrfs man page.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Translate such requests into FS_IOC_GETFLAGS and FS_IOC_SETFLAGS ioctls
respectively. The module makes no distinction between compression types,
only whether or not compression is enabled.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-User(master): Rusty Russell <rusty@rustcorp.com.au>
Autobuild-Date(master): Sun Mar 24 06:17:55 CET 2013 on sn-devel-104
This reverts commit fd6d0361d6fef5f8175967ddbae4a2b1d79dfcad.
Unreviewed, and Andrew has a better fix.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
uint64_t are not unsigned longs on 32-bit platforms:
[3265/3996] Compiling source3/modules/vfs_btrfs.c
../source3/modules/vfs_btrfs.c: In function ‘btrfs_copy_chunk_send’:
../source3/modules/vfs_btrfs.c:118:3: error: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 3 has type ‘uint64_t’ [-Werror=format]
../source3/modules/vfs_btrfs.c:118:3: error: format ‘%ld’ expects argument of type ‘long int’, but argument 4 has type ‘int64_t’ [-Werror=format]
../source3/modules/vfs_btrfs.c:118:3: error: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 5 has type ‘uint64_t’ [-Werror=format]
../source3/modules/vfs_btrfs.c:118:3: error: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 7 has type ‘uint64_t’ [-Werror=format]
../source3/modules/vfs_btrfs.c: In function ‘btrfs_copy_chunk_recv’:
../source3/modules/vfs_btrfs.c:180:2: error: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 2 has type ‘off_t’ [-Werror=format]
cc1: some warnings being treated as errors
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Currently it only plumbs itself into the copy_chunk call path,
translating such requests into BTRFS_IOC_CLONE_RANGE calls.
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
