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02bed83d |
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16-Apr-2024 |
Kent Overstreet <kent.overstreet@linux.dev> |
bcachefs: Fix null ptr deref in twf from BCH_IOCTL_FSCK_OFFLINE We need to initialize the stdio redirects before they're used. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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da23795e |
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17-Feb-2024 |
Kent Overstreet <kent.overstreet@linux.dev> |
bcachefs: thread_with_file: add f_ops.flush Add a flush op, to return the exit code via close(). Also update bcachefs usage to use this to return fsck exit codes. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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658a1e42 |
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10-Feb-2024 |
Darrick J. Wong <djwong@kernel.org> |
bcachefs: thread_with_file: allow ioctls against these files Make it so that a thread_with_stdio user can handle ioctls against the file descriptor. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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ab6752e2 |
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10-Feb-2024 |
Darrick J. Wong <djwong@kernel.org> |
bcachefs: thread_with_file: create ops structure for thread_with_stdio Create an ops structure so we can add more file-based functionality in the next few patches. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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1cbae651 |
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07-Feb-2024 |
Darrick J. Wong <djwong@kernel.org> |
bcachefs: thread_with_file: fix various printf problems Experimentally fix some problems with stdio_redirect_vprintf by creating a MOO variant with which we can experiment. We can't do a GFP_KERNEL allocation while holding the spinlock, and I don't like how the printf function can silently truncate the output if memory allocation fails. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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fcb1620e |
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07-Feb-2024 |
Darrick J. Wong <djwong@kernel.org> |
bcachefs: thread_with_file: allow creation of readonly files Create a new run_thread_with_stdout function that opens a file in O_RDONLY mode so that the kernel can write things to userspace but userspace cannot write to the kernel. This will be used to convey xfs health event information to userspace. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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032b3fd0 |
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03-Feb-2024 |
Kent Overstreet <kent.overstreet@linux.dev> |
bcachefs: Thread with file documentation Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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a6777ca4 |
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04-Feb-2024 |
Kent Overstreet <kent.overstreet@linux.dev> |
bcachefs: thread_with_stdio: kill thread_with_stdio_done() Move the cleanup code to a wrapper function, where we can call it after the thread_with_stdio fn exits. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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60e1baa8 |
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04-Feb-2024 |
Kent Overstreet <kent.overstreet@linux.dev> |
bcachefs: thread_with_stdio: convert to darray - eliminate the dependency on printbufs, so that we can lift thread_with_file for use in xfs - add a nonblocking parameter to stdio_redirect_printf(), and either block if the buffer is full or drop it on the floor - don't buffer infinitely Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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e017047f |
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04-Feb-2024 |
Kent Overstreet <kent.overstreet@linux.dev> |
bcachefs: thread_with_stdio: eliminate double buffering The output buffer lock has to be a spinlock so that we can write to it from interrupt context, so we can't use a direct copy_to_user; this switches thread_with_file_read() to use fault_in_writeable() and copy_to_user_nofault(), similar to how thread_with_file_write() works. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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96f37eab |
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31-Dec-2023 |
Kent Overstreet <kent.overstreet@linux.dev> |
bcachefs: factor out thread_with_file, thread_with_stdio thread_with_stdio now knows how to handle input - fsck can now prompt to fix errors. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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