kernel/git/stable/linux.git/fs/bcachefs/util.c, branch linux-6.9.y

bcachefs: Etyzinger cleanups

2024-04-03T18:44:18+00:00

Pull out eytzinger.c and kill eytzinger_cmp_fn. We now provide eytzinger0_sort and eytzinger0_sort_r, which use the standard cmp_func_t and cmp_r_func_t callbacks. Signed-off-by: Kent Overstreet

bcachefs: time_stats: split stats-with-quantiles into a separate structure

2024-03-14T01:38:01+00:00

Currently, struct time_stats has the optional ability to quantize the information that it collects. This is /probably/ useful for callers who want to see quantized information, but it more than doubles the size of the structure from 224 bytes to 464. For users who don't care about that (e.g. upcoming xfs patches) and want to avoid wasting 240 bytes per counter, split the two into separate pieces. Signed-off-by: Darrick J. Wong Signed-off-by: Kent Overstreet

bcachefs: mean_and_variance: put struct mean_and_variance_weighted on a diet

2024-03-14T01:37:58+00:00

The only caller of this code (time_stats) always knows the weights and whether or not any information has been collected. Pass this information into the mean and variance code so that it doesn't have to store that information. This reduces the structure size from 24 to 16 bytes, which shrinks each time_stats counter to 192 bytes from 208. Signed-off-by: Darrick J. Wong Signed-off-by: Kent Overstreet

bcachefs: pull out time_stats.[ch]

2024-03-14T01:30:35+00:00

prep work for lifting out of fs/bcachefs/ Signed-off-by: Kent Overstreet

bcachefs: kill kvpmalloc()

2024-03-13T22:39:12+00:00

Signed-off-by: Kent Overstreet

bcachefs: fix bch2_save_backtrace()

2024-02-25T20:45:36+00:00

Missed a call in the previous fix. Signed-off-by: Kent Overstreet

bcachefs: time_stats: Check for last_event == 0 when updating freq stats

2024-02-05T06:16:31+00:00

This fixes spurious outliers in the frequency stats. Signed-off-by: Kent Overstreet

bcachefs: Add gfp flags param to bch2_prt_task_backtrace()

2024-01-22T17:37:51+00:00

Fixes: e6a2566f7a00 ("bcachefs: Better journal tracepoints") Signed-off-by: Kent Overstreet Reported-by: smatch

bcachefs: Improve move_extent tracepoint

2024-01-21T18:27:09+00:00

Also print out the data_opts, so that we can see what specifically is being done to an extent. Signed-off-by: Kent Overstreet

bcachefs: fix memleak in bch2_split_devs

2024-01-21T11:01:45+00:00

The pointer dev_name can be modified by strseq(), then causes the memleak: unreferenced object 0xffff9d08a2916c80 (size 32): comm "mount.bcachefs", pid 9090, jiffies 4295856224 (age 17.564s) hex dump (first 32 bytes): 2f 64 65 76 2f 6d 61 70 70 65 72 2f 74 65 73 74 /dev/mapper/test 2d 30 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -0.............. backtrace: [<00000000c5d3be7d>] __kmem_cache_alloc_node+0x1f3/0x2c0 [<0000000052215d26>] __kmalloc_node_track_caller+0x51/0x150 [<0000000069fea956>] kstrdup+0x32/0x60 [<000000000877fcf1>] bch2_split_devs+0x3f/0x150 [bcachefs] [<000000007ee93204>] bch2_mount+0xcb/0x640 [bcachefs] [<000000002dd1e04b>] legacy_get_tree+0x30/0x60 [<000000006afc31d3>] vfs_get_tree+0x28/0xf0 [<000000007b0c538e>] path_mount+0x475/0xb60 [<0000000092de5882>] __x64_sys_mount+0x105/0x140 [<0000000054fc05d8>] do_syscall_64+0x42/0xf0 [<00000000df584910>] entry_SYSCALL_64_after_hwframe+0x6e/0x76 Fix it by copy pointer dev_name at beginning and free the copied pointer at end. Signed-off-by: Su Yue Reviewed-by: Brian Foster Signed-off-by: Kent Overstreet