Fix typo in nocow option description #674
Open
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Reported-by: [email protected] Signed-off-by: Kent Overstreet <[email protected]>
We don't want the assert when we're checking if the backpointer is valid. Reported-by: [email protected] Signed-off-by: Kent Overstreet <[email protected]>
Reported-by: [email protected] Signed-off-by: Kent Overstreet <[email protected]>
Reported-by: [email protected] Signed-off-by: Kent Overstreet <[email protected]>
Signed-off-by: Kent Overstreet <[email protected]>
Normally this is initialized in __bch2_write(), which is executed in a loop, but the inline data path skips this. Reported-by: [email protected] Signed-off-by: Kent Overstreet <[email protected]>
bch2_dev_lookup() is supposed to take a ref on the device it returns, but for_each_member_device() takes refs as it iterates, for_each_member_device_rcu() does not. Signed-off-by: Kent Overstreet <[email protected]>
bch2_get_next_dev() and bch2_get_next_online_dev() iterate over devices, dropping and taking refs as they go; we can't access the previous device (for ca->dev_idx) after we've dropped our ref to it, unless we take rcu_read_lock() first. Signed-off-by: Kent Overstreet <[email protected]>
The bucket_gens array is a single array allocation (one byte per bucket), and kernel allocations are still limited to INT_MAX. Check this limit to avoid failing the bucket_gens array allocation. Reported-by: [email protected] Signed-off-by: Kent Overstreet <[email protected]>
filefrag (and potentially other utilities that call fiemap) sometimes pass ULONG_MAX as the length. fiemap_prep clamps excessively large lengths - but the calculation of end can overflow if it occurs before calling fiemap_prep. When this happens, filefrag assumes it has read to the end and exits. Signed-off-by: Reed Riley <[email protected]> Signed-off-by: Kent Overstreet <[email protected]>
When a superblock write is silently dropped or it's been modified by another process we need to know which device it was. Signed-off-by: Kent Overstreet <[email protected]>
We need to be able to test these paths in dry run mode. Signed-off-by: Kent Overstreet <[email protected]>
- fix assorted (harmless) off-by-one errors - we were inconsistent on whether out->pos stays <= out->size on overflow; now it does, and printbuf.overflow exists to indicate if a printbuf has overflowed - factor out printbuf_advance_pos() - printbuf_nul_terminate_reserved(); use this to reduce the number of printbuf_make_room() calls Signed-off-by: Kent Overstreet <[email protected]>
Signed-off-by: Kent Overstreet <[email protected]>
Signed-off-by: Kent Overstreet <[email protected]>
better btree node read path error messages Signed-off-by: Kent Overstreet <[email protected]>
debug helper Signed-off-by: Kent Overstreet <[email protected]>
small cleanup Signed-off-by: Kent Overstreet <[email protected]>
Signed-off-by: Kent Overstreet <[email protected]>
Long form version of bch2_btree_path_to_text() - useful in error messages and tracepoints. Signed-off-by: Kent Overstreet <[email protected]>
Signed-off-by: Kent Overstreet <[email protected]>
Be more explicit to the user about what we're doing. Signed-off-by: Kent Overstreet <[email protected]>
reading the journal can take a decent amount of time compared to the rest of fsck, let's only read it when required. Signed-off-by: Kent Overstreet <[email protected]>
…s to same leaf node Signed-off-by: Kent Overstreet <[email protected]>
This optimization reduces the average number of comparisons required from 2*n*log2(n) - 3*n + o(n) to n*log2(n) + 0.37*n + o(n). When n is sufficiently large, it results in approximately 50% fewer comparisons. Currently, eytzinger0_sort employs the textbook version of heapsort, where during the heapify process, each level requires two comparisons to determine the maximum among three elements. In contrast, the bottom-up heapsort, during heapify, only compares two children at each level until reaching a leaf node. Then, it backtracks from the leaf node to find the correct position. Since heapify typically continues until very close to the leaf node, the standard heapify requires about 2*log2(n) comparisons, while the bottom-up variant only needs log2(n) comparisons. The experimental data presented below is based on an array generated by get_random_u32(). | N | comparisons(old) | comparisons(new) | time(old) | time(new) | |-------|------------------|------------------|-----------|-----------| | 10000 | 235381 | 136615 | 25545 us | 20366 us | | 20000 | 510694 | 293425 | 31336 us | 18312 us | | 30000 | 800384 | 457412 | 35042 us | 27386 us | | 40000 | 1101617 | 626831 | 48779 us | 38253 us | | 50000 | 1409762 | 799637 | 62238 us | 46950 us | | 60000 | 1721191 | 974521 | 75588 us | 58367 us | | 70000 | 2038536 | 1152171 | 90823 us | 68778 us | | 80000 | 2362958 | 1333472 | 104165 us | 78625 us | | 90000 | 2690900 | 1516065 | 116111 us | 89573 us | | 100000| 3019413 | 1699879 | 133638 us | 100998 us | Refs: BOTTOM-UP-HEAPSORT, a new variant of HEAPSORT beating, on an average, QUICKSORT (if n is not very small) Ingo Wegener Theoretical Computer Science, 118(1); Pages 81-98, 13 September 1993 https://doi.org/10.1016/0304-3975(93)90364-Y Signed-off-by: Kuan-Wei Chiu <[email protected]> Signed-off-by: Kent Overstreet <[email protected]>
Dead code Signed-off-by: Kent Overstreet <[email protected]>
Signed-off-by: Kent Overstreet <[email protected]>
Signed-off-by: Kent Overstreet <[email protected]>
with errors_silent, reconstruct_alloc no longer requires fsck and fix_errors to work Signed-off-by: Kent Overstreet <[email protected]>
Signed-off-by: Kent Overstreet <[email protected]>
koverstreet
force-pushed
the
master
branch
5 times, most recently
from
e4b827e to
b3a7824
Compare
koverstreet
force-pushed
the
master
branch
3 times, most recently
from
48c34ec to
c7e3dd8
Compare
koverstreet
force-pushed
the
master
branch
7 times, most recently
from
8903f5f to
bc01863
Compare
koverstreet
force-pushed
the
master
branch
8 times, most recently
from
f1d736e to
f22a971
Compare
koverstreet
force-pushed
the
master
branch
6 times, most recently
from
79c1539 to
f8ed207
Compare
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
No description provided.