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path: root/fs/bcachefs/chardev.c (follow)
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2023-10-22bcachefs: Enforce SYS_CAP_ADMIN within ioctlsTobias Geerinckx-Rice1-8/+36
bch2_fs_ioctl() didn't distinguish between unsupported ioctls and those which the current user is unauthorised to perform. That kept the code simple but meant that, for example, an unprivileged TIOCGWINSZ ioctl on a bcachefs file would return -EPERM instead of the expected -ENOTTY. The same call made by a privileged user would correctly return -ENOTTY. Fix this discrepancy by moving the check for CAP_SYS_ADMIN into each privileged ioctl function. Signed-off-by: Tobias Geerinckx-Rice <me@tobias.gr> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22bcachefs: Fix out of bounds read in fs usage ioctlDan Robertson1-1/+2
Fix a possible read out of bounds if bch2_ioctl_fs_usage is called when replica_entries_bytes is set to a value that is smaller than the size of bch_replicas_usage. Signed-off-by: Dan Robertson <dan@dlrobertson.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22bcachefs: Fix null deref in bch2_ioctl_read_superDan Robertson1-1/+1
Do not attempt to cleanup the returned value of bch2_device_lookup if the returned value was an error pointer. We currently check to see if the returned value is null and run the cleanup otherwise. As a result, we attempt to run the cleanup on a error pointer. Signed-off-by: Dan Robertson <dan@dlrobertson.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22bcachefs: Refactor dev usageKent Overstreet1-3/+3
This is to make it more amenable for serialization. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22bcachefs: Move journal reclaim to a kthreadKent Overstreet1-1/+2
This is to make tracing easier. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22bcachefs: Add an ioctl for resizing journal on a deviceKent Overstreet1-0/+23
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22bcachefs: Delete unused argumentsKent Overstreet1-1/+1
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22bcachefs: Track sectors of erasure coded dataKent Overstreet1-3/+6
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22bcachefs: Redo filesystem usage ioctlsKent Overstreet1-61/+91
When disk space accounting was changed to be tracked by replicas entry, the ioctl interface was never update: this patch finally does that. Aditionally, the BCH_IOCTL_USAGE ioctl is now broken out into separate ioctls for filesystem and device usage. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22bcachefs: some improvements to startup messages and optionsKent Overstreet1-1/+1
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22bcachefs: Write out fs usage consistentlyKent Overstreet1-2/+2
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22bcachefs: Only get btree iters from btree transactionsKent Overstreet1-2/+2
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22bcachefs: Add a mechanism for blocking the journalKent Overstreet1-3/+3
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22bcachefs: Fix check for if extent update is allocatingKent Overstreet1-5/+15
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22bcachefs: Include summarized counts in fs_usageKent Overstreet1-1/+1
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22bcachefs: refactor bch_fs_usageKent Overstreet1-1/+1
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22bcachefs: Split out alloc_background.cKent Overstreet1-1/+0
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22bcachefs: Account for internal fragmentation betterKent Overstreet1-2/+2
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22bcachefs: kill s_alloc, use bch_data_typeKent Overstreet1-3/+2
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22bcachefs: Initial commitKent Overstreet1-0/+663
Initially forked from drivers/md/bcache, bcachefs is a new copy-on-write filesystem with every feature you could possibly want. Website: https://bcachefs.org Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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