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Author SHA1 Message Date
Justin Husted
76e147d0a9 Fix refcount bug in blkdev and timer kthreads. 
The shutdown code in d79d57e and b20e160 had a race condition during
shutdown, due to not owning a reference on the associated task_struct
while the associated threads shut themselves down.

Patch over this by taking an appropriate reference.

Signed-off-by: Justin Husted <sigstop@gmail.com>
 2019-11-07 16:44:04 -08:00
Justin Husted
ff695c5afb Use the correct clock for userspace time. 
The ktime_get_coarse_real_ts64() implementation for userspace was using
CLOCK_MONOTONIC instead of CLOCK_REALTIME_COARSE.  This resulted in
files being timestamped with a time close to the unix epoch.

Signed-off-by: Justin Husted <sigstop@gmail.com>
 2019-11-04 21:23:46 -08:00
Justin Husted
4ed889295c Add makefile support for tags. 
Also, update .gitignore for various things.

Signed-off-by: Justin Husted <sigstop@gmail.com>
 2019-11-04 21:23:46 -08:00
Kent Overstreet
6016d33b80 Update bcachefs sources to 9e76e8d98c bcachefs: Fix uninitialized field in hash_check_init() 2019-11-04 12:53:59 -05:00
Justin Husted
61bc316a4d Initial version of bcachefs tests. 
So far, these tests just test basic format, fsck, and list functions
under valgrind, as well as a few self-validation tests.

Signed-off-by: Justin Husted <sigstop@gmail.com>
 2019-11-03 23:17:43 -05:00
Justin Husted
d79d57ef89 Stop blkdev completion thread at process exit time, to make valgrind 
happy.

Signed-off-by: Justin Husted <sigstop@gmail.com>
 2019-11-03 23:17:43 -05:00
Justin Husted
97c6f60222 Stop workqueue threads at process exit time, to make valgrind happy. 
Signed-off-by: Justin Husted <sigstop@gmail.com>
 2019-11-03 23:17:43 -05:00
Justin Husted
b20e160735 Stop the timer task at process exit time, to make valgrind happy. 
Signed-off-by: Justin Husted <sigstop@gmail.com>
 2019-11-03 23:17:43 -05:00
Justin Husted
36e4b3147e Temporary import of valgrind fixes for bcachefs branch. 2019-11-03 23:17:43 -05:00
Justin Husted
37899250f3 Fix memory leak in cmd_format.c 
Signed-off-by: Justin Husted <sigstop@gmail.com>
 2019-11-03 23:17:43 -05:00
Justin Husted
bf7574260c Add better valgrind support for journal write buffers. 2019-11-03 23:17:43 -05:00
Justin Husted
ff4d082246 Change preempt_disable() etc. to use a recursive mutex. 
This is part of the userspace implementation of the kernel APIs for
bcachefs-tools. The previous implementation just provided a barrier, but
this isn't sufficient to make the associated percpu implementation safe.

Signed-off-by: Justin Husted <sigstop@gmail.com>
 2019-11-03 23:17:43 -05:00
Justin Husted
2bc1166919 Add more fuse logging. 
Signed-off-by: Justin Husted <sigstop@gmail.com>
 2019-11-03 23:17:43 -05:00
Kent Overstreet
648b871d3d Enable caching of negative dentries 2019-10-18 16:51:15 -04:00
Kent Overstreet
b5af93e90f Simplify readdir 2019-10-18 16:24:18 -04:00
Kent Overstreet
8e6afb875d Write path now updates i_size/i_sectors 2019-10-18 16:23:39 -04:00
Justin Husted
3214b44d90 Use proper flags mask. 2019-10-18 16:23:39 -04:00
Justin Husted
fd0b8fe7f0 Prettify the align_io function by returning by value. 2019-10-18 16:23:39 -04:00
Justin Husted
de151b0659 Fix missing mode setting in fuse mkdir. 2019-10-18 16:23:39 -04:00
Justin Husted
0df96db46e Add fuse symlink and readlink support. 
Also fix link.
 2019-10-18 16:23:39 -04:00
Justin Husted
426d2c74fd Implement unaligned write support for fuse. Seems to work on initial 
testing, but there are problems with cache coherency and journaling.
 2019-10-18 16:23:39 -04:00
Justin Husted
1a8288cba2 Factor alignment logic out of bcachefs_fuse_read. 2019-10-18 16:23:39 -04:00
Justin Husted
0521494e79 Implement unaligned read support for fuse. 2019-10-18 16:23:39 -04:00
Justin Husted
f8076573b5 Make fuse read and write work (for aligned writes). 
Read: There was a missing refcount on the closure.

Write: Unlike in the Linux kernel, we need to manually update the size
and timestamps, otherwise the operation will appear complete when viewed
via the cached inode, but after unmounting and mounting again the write
will be undone.
 2019-10-18 16:23:39 -04:00
Justin Husted
52771aa7d2 Fix fuse read/write to not segfault on unaligned IO. 2019-10-18 16:23:39 -04:00
Kent Overstreet
415a3651fc initialize op->pos for write 2019-10-18 16:23:39 -04:00
Justin Husted
e1ed5557bf Add valgrind handling: data read from io_submit was not being marked 
properly. Manually mark it.

This might be better done by improving the valgrind wrapper for
io_submit.
 2019-10-18 16:23:39 -04:00
Kent Overstreet
94980e1892 fill in .st_ino in .getattr 2019-10-18 16:23:39 -04:00
Kent Overstreet
81551c8f1b build fixes; initial read/write methods 2019-10-18 16:23:39 -04:00
Justin Husted
8b6497b4e7 Fix infinite looping behavior with readdir. 
Also adds partial . and .. support, and implements ENOTDIR error.

The source of this problem was due to the off-by-one interface expected
by readdir. Each directory entry contains a pointer to next, so it
cannot be emitted to the user until the next entry is actually read.

Returning the current position + 1 is insufficient, because the user
will just retry cur + 1 as the start position to see if they've reached
the end of the directory.

Since directory entries are keyed by a 64-bit hash in bcachefs, the
result was that the user would call readdir over and over with what it
believed the next pointer to be until "cur + 1" reached some enormous
64-bit value related to the hash for the "lost+found" entry.
 2019-10-18 16:23:39 -04:00
Justin Husted
08ce726f9c Implement option parsing for fuse. The syntax is: 
bcachefs fusemount dev mountpoint
or
bcachefs fusemount dev1:dev2:... mountpoint
 2019-10-18 16:23:39 -04:00
Kent Overstreet
bc45c28470 fuse 2019-10-18 16:23:39 -04:00
Kent Overstreet
3c810611c1 Update bcachefs sources to fc4f1d59cf bcachefs: Fix an iterator counting bug 2019-10-16 14:13:07 -04:00
Kent Overstreet
6e696ea087 Update bcachefs sources to de906c3e2e bcachefs: Fix iterator counting for reflink pointers (again) 2019-10-12 14:49:11 -04:00
Kent Overstreet
cec69929f0 Update bcachefs sources to d0625a4418 bcachefs: Fix creation of lost+found 2019-10-11 15:04:27 -04:00
Kent Overstreet
7f3557f57e Update bcachefs sources to 7e03c1ab0e bcachefs: Kill bchfs_extent_update() 2019-10-10 18:06:44 -04:00
Kent Overstreet
62f5e4fa67 Update bcachefs sources to ce9293e9d0 bcachefs: Factor out fs-common.c 2019-10-04 16:26:48 -04:00
Kent Overstreet
b540b170c9 Update bcachefs sources to cddca21efc bcachefs: Don't use sha256 for siphash str hash key 2019-10-04 16:22:37 -04:00
Kent Overstreet
7f69c4161c Update bcachefs sources to 380885b0b8 bcachefs: Fix counting iterators for reflink pointers 2019-10-01 16:30:36 -04:00
Kent Overstreet
98b8f8d0c0 Update six locks 2019-10-01 15:55:42 -04:00
Kent Overstreet
db39aa3e1b Update bcachefs sources to 5a3a4087af bcachefs: Convert a BUG_ON() to a warning 2019-09-25 15:23:50 -04:00
Kent Overstreet
ceee9244de Have cmd_dump fix errors 
Some errors can't be ignored, and fsck and thus dump will only complete
if we're fixing errors.
 2019-08-29 13:33:42 -04:00
Kent Overstreet
aa2a42b0a6 Update bcachefs sources to fee79cd654 bcachefs: Fix BTREE_INSERT_NOMARK_OVERWRITES 2019-08-29 13:32:04 -04:00
Kent Overstreet
68963f1816 Update bcachefs sources to 0d627739e9 bcachefs: Improve pointer marking checks and error messages 2019-08-29 11:44:11 -04:00
Kent Overstreet
7f35a52029 Add a way to pass arbitrary mount options to fsck 2019-08-28 13:43:45 -04:00
Kent Overstreet
92fc14824f Update bcachefs sources to 05ef7000f2 bcachefs: Switch reconstruct_alloc to a mount option 2019-08-28 13:43:42 -04:00
Kent Overstreet
8192cc8ed8 Update llist code 
This fixes a bug where the compiler was dropping a null ptr check
 2019-08-28 11:35:00 -04:00
Kent Overstreet
e6e7d374e7 Update bcachefs sources to bfb7133d71 bcachefs: Refactor bch2_alloc_write() 2019-08-28 11:09:35 -04:00
Kent Overstreet
c8322ce68c Update bcachefs sources to 4ed63a3241 bcachefs: Trust in memory bucket mark 2019-08-28 00:31:57 -04:00
Kent Overstreet
cc41f52bcc Update bcachefs sources to 14f68409be bcachefs: Optimize fiemap 2019-08-27 17:37:03 -04:00