^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /* -*- mode: c; c-basic-offset: 8; -*-
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * vim: noexpandtab sw=8 ts=8 sts=0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * io.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Buffer cache handling
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Copyright (C) 2002, 2004 Oracle. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/highmem.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/bio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <cluster/masklog.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include "ocfs2.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include "alloc.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include "inode.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include "journal.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include "uptodate.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include "buffer_head_io.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include "ocfs2_trace.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * Bits on bh->b_state used by ocfs2.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) * These MUST be after the JBD2 bits. Hence, we use BH_JBDPrivateStart.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) enum ocfs2_state_bits {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) BH_NeedsValidate = BH_JBDPrivateStart,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) /* Expand the magic b_state functions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) BUFFER_FNS(NeedsValidate, needs_validate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) int ocfs2_write_block(struct ocfs2_super *osb, struct buffer_head *bh,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) struct ocfs2_caching_info *ci)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) trace_ocfs2_write_block((unsigned long long)bh->b_blocknr, ci);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) BUG_ON(bh->b_blocknr < OCFS2_SUPER_BLOCK_BLKNO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) BUG_ON(buffer_jbd(bh));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) /* No need to check for a soft readonly file system here. non
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) * journalled writes are only ever done on system files which
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) * can get modified during recovery even if read-only. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) if (ocfs2_is_hard_readonly(osb)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) ret = -EROFS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) mlog_errno(ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) ocfs2_metadata_cache_io_lock(ci);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) lock_buffer(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) set_buffer_uptodate(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) /* remove from dirty list before I/O. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) clear_buffer_dirty(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) get_bh(bh); /* for end_buffer_write_sync() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) bh->b_end_io = end_buffer_write_sync;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) submit_bh(REQ_OP_WRITE, 0, bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) wait_on_buffer(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) if (buffer_uptodate(bh)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) ocfs2_set_buffer_uptodate(ci, bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) /* We don't need to remove the clustered uptodate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) * information for this bh as it's not marked locally
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) * uptodate. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) ret = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) mlog_errno(ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) ocfs2_metadata_cache_io_unlock(ci);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) /* Caller must provide a bhs[] with all NULL or non-NULL entries, so it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) * will be easier to handle read failure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) int ocfs2_read_blocks_sync(struct ocfs2_super *osb, u64 block,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) unsigned int nr, struct buffer_head *bhs[])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) int status = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) unsigned int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) struct buffer_head *bh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) int new_bh = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) trace_ocfs2_read_blocks_sync((unsigned long long)block, nr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) if (!nr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) goto bail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) /* Don't put buffer head and re-assign it to NULL if it is allocated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) * outside since the caller can't be aware of this alternation!
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) new_bh = (bhs[0] == NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) for (i = 0 ; i < nr ; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) if (bhs[i] == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) bhs[i] = sb_getblk(osb->sb, block++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) if (bhs[i] == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) status = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) mlog_errno(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) bh = bhs[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) if (buffer_jbd(bh)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) trace_ocfs2_read_blocks_sync_jbd(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) (unsigned long long)bh->b_blocknr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) if (buffer_dirty(bh)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) /* This should probably be a BUG, or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) * at least return an error. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) mlog(ML_ERROR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) "trying to sync read a dirty "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) "buffer! (blocknr = %llu), skipping\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) (unsigned long long)bh->b_blocknr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) lock_buffer(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) if (buffer_jbd(bh)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) #ifdef CATCH_BH_JBD_RACES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) mlog(ML_ERROR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) "block %llu had the JBD bit set "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) "while I was in lock_buffer!",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) (unsigned long long)bh->b_blocknr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) BUG();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) unlock_buffer(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) get_bh(bh); /* for end_buffer_read_sync() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) bh->b_end_io = end_buffer_read_sync;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) submit_bh(REQ_OP_READ, 0, bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) read_failure:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) for (i = nr; i > 0; i--) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) bh = bhs[i - 1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) if (unlikely(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) if (new_bh && bh) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) /* If middle bh fails, let previous bh
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) * finish its read and then put it to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) * aovoid bh leak
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) if (!buffer_jbd(bh))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) wait_on_buffer(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) put_bh(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) bhs[i - 1] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) } else if (bh && buffer_uptodate(bh)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) clear_buffer_uptodate(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) /* No need to wait on the buffer if it's managed by JBD. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) if (!buffer_jbd(bh))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) wait_on_buffer(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) if (!buffer_uptodate(bh)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) /* Status won't be cleared from here on out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) * so we can safely record this and loop back
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) * to cleanup the other buffers. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) status = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) goto read_failure;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) bail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) /* Caller must provide a bhs[] with all NULL or non-NULL entries, so it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) * will be easier to handle read failure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) int ocfs2_read_blocks(struct ocfs2_caching_info *ci, u64 block, int nr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) struct buffer_head *bhs[], int flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) int (*validate)(struct super_block *sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) struct buffer_head *bh))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) int status = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) int i, ignore_cache = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) struct buffer_head *bh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) struct super_block *sb = ocfs2_metadata_cache_get_super(ci);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) int new_bh = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) trace_ocfs2_read_blocks_begin(ci, (unsigned long long)block, nr, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) BUG_ON(!ci);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) BUG_ON((flags & OCFS2_BH_READAHEAD) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) (flags & OCFS2_BH_IGNORE_CACHE));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) if (bhs == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) status = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) mlog_errno(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) goto bail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) if (nr < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) mlog(ML_ERROR, "asked to read %d blocks!\n", nr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) status = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) mlog_errno(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) goto bail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) if (nr == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) status = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) goto bail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) /* Don't put buffer head and re-assign it to NULL if it is allocated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) * outside since the caller can't be aware of this alternation!
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) new_bh = (bhs[0] == NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) ocfs2_metadata_cache_io_lock(ci);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) for (i = 0 ; i < nr ; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) if (bhs[i] == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) bhs[i] = sb_getblk(sb, block++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) if (bhs[i] == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) ocfs2_metadata_cache_io_unlock(ci);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) status = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) mlog_errno(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) /* Don't forget to put previous bh! */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) bh = bhs[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) ignore_cache = (flags & OCFS2_BH_IGNORE_CACHE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) /* There are three read-ahead cases here which we need to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) * be concerned with. All three assume a buffer has
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) * previously been submitted with OCFS2_BH_READAHEAD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) * and it hasn't yet completed I/O.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) * 1) The current request is sync to disk. This rarely
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) * happens these days, and never when performance
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) * matters - the code can just wait on the buffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) * lock and re-submit.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) * 2) The current request is cached, but not
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) * readahead. ocfs2_buffer_uptodate() will return
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) * false anyway, so we'll wind up waiting on the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) * buffer lock to do I/O. We re-check the request
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) * with after getting the lock to avoid a re-submit.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) * 3) The current request is readahead (and so must
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) * also be a caching one). We short circuit if the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) * buffer is locked (under I/O) and if it's in the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) * uptodate cache. The re-check from #2 catches the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) * case that the previous read-ahead completes just
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) * before our is-it-in-flight check.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) if (!ignore_cache && !ocfs2_buffer_uptodate(ci, bh)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) trace_ocfs2_read_blocks_from_disk(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) (unsigned long long)bh->b_blocknr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) (unsigned long long)ocfs2_metadata_cache_owner(ci));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) /* We're using ignore_cache here to say
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) * "go to disk" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) ignore_cache = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) trace_ocfs2_read_blocks_bh((unsigned long long)bh->b_blocknr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) ignore_cache, buffer_jbd(bh), buffer_dirty(bh));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) if (buffer_jbd(bh)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) if (ignore_cache) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) if (buffer_dirty(bh)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) /* This should probably be a BUG, or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) * at least return an error. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) /* A read-ahead request was made - if the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) * buffer is already under read-ahead from a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) * previously submitted request than we are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) * done here. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) if ((flags & OCFS2_BH_READAHEAD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) && ocfs2_buffer_read_ahead(ci, bh))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) lock_buffer(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) if (buffer_jbd(bh)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) #ifdef CATCH_BH_JBD_RACES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) mlog(ML_ERROR, "block %llu had the JBD bit set "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) "while I was in lock_buffer!",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) (unsigned long long)bh->b_blocknr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) BUG();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) unlock_buffer(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) /* Re-check ocfs2_buffer_uptodate() as a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) * previously read-ahead buffer may have
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) * completed I/O while we were waiting for the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) * buffer lock. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) if (!(flags & OCFS2_BH_IGNORE_CACHE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) && !(flags & OCFS2_BH_READAHEAD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) && ocfs2_buffer_uptodate(ci, bh)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) unlock_buffer(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) get_bh(bh); /* for end_buffer_read_sync() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) if (validate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) set_buffer_needs_validate(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) bh->b_end_io = end_buffer_read_sync;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) submit_bh(REQ_OP_READ, 0, bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) read_failure:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) for (i = (nr - 1); i >= 0; i--) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) bh = bhs[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) if (!(flags & OCFS2_BH_READAHEAD)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) if (unlikely(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) /* Clear the buffers on error including those
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) * ever succeeded in reading
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) if (new_bh && bh) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) /* If middle bh fails, let previous bh
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) * finish its read and then put it to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) * aovoid bh leak
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) if (!buffer_jbd(bh))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) wait_on_buffer(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) put_bh(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) bhs[i] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) } else if (bh && buffer_uptodate(bh)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) clear_buffer_uptodate(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) /* We know this can't have changed as we hold the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) * owner sem. Avoid doing any work on the bh if the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) * journal has it. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) if (!buffer_jbd(bh))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) wait_on_buffer(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) if (!buffer_uptodate(bh)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) /* Status won't be cleared from here on out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) * so we can safely record this and loop back
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) * to cleanup the other buffers. Don't need to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) * remove the clustered uptodate information
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) * for this bh as it's not marked locally
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) * uptodate. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) status = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) clear_buffer_needs_validate(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) goto read_failure;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) if (buffer_needs_validate(bh)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) /* We never set NeedsValidate if the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) * buffer was held by the journal, so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) * that better not have changed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) BUG_ON(buffer_jbd(bh));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) clear_buffer_needs_validate(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) status = validate(sb, bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) if (status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) goto read_failure;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) /* Always set the buffer in the cache, even if it was
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) * a forced read, or read-ahead which hasn't yet
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) * completed. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) ocfs2_set_buffer_uptodate(ci, bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) ocfs2_metadata_cache_io_unlock(ci);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) trace_ocfs2_read_blocks_end((unsigned long long)block, nr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) flags, ignore_cache);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) bail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) /* Check whether the blkno is the super block or one of the backups. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) static void ocfs2_check_super_or_backup(struct super_block *sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) sector_t blkno)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) u64 backup_blkno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) if (blkno == OCFS2_SUPER_BLOCK_BLKNO)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) for (i = 0; i < OCFS2_MAX_BACKUP_SUPERBLOCKS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) backup_blkno = ocfs2_backup_super_blkno(sb, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) if (backup_blkno == blkno)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) BUG();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) * Write super block and backups doesn't need to collaborate with journal,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) * so we don't need to lock ip_io_mutex and ci doesn't need to bea passed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) * into this function.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) int ocfs2_write_super_or_backup(struct ocfs2_super *osb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) struct buffer_head *bh)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) BUG_ON(buffer_jbd(bh));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) ocfs2_check_super_or_backup(osb->sb, bh->b_blocknr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) if (ocfs2_is_hard_readonly(osb) || ocfs2_is_soft_readonly(osb)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) ret = -EROFS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) mlog_errno(ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) lock_buffer(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) set_buffer_uptodate(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) /* remove from dirty list before I/O. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) clear_buffer_dirty(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) get_bh(bh); /* for end_buffer_write_sync() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) bh->b_end_io = end_buffer_write_sync;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) ocfs2_compute_meta_ecc(osb->sb, bh->b_data, &di->i_check);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) submit_bh(REQ_OP_WRITE, 0, bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) wait_on_buffer(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) if (!buffer_uptodate(bh)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) ret = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) mlog_errno(ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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