diff options
| -rw-r--r-- | e2fsck/e2fsck.8.in | 4 | ||||
| -rw-r--r-- | e2fsck/e2fsck.conf.5.in | 4 | ||||
| -rw-r--r-- | e2fsck/e2fsck.h | 1 | ||||
| -rw-r--r-- | e2fsck/extents.c | 3 | ||||
| -rw-r--r-- | e2fsck/unix.c | 8 |
5 files changed, 20 insertions, 0 deletions
diff --git a/e2fsck/e2fsck.8.in b/e2fsck/e2fsck.8.in index 915273d8..4ad575f4 100644 --- a/e2fsck/e2fsck.8.in +++ b/e2fsck/e2fsck.8.in @@ -226,6 +226,10 @@ option may prevent you from further manual data recovery. Do not attempt to discard free blocks and unused inode blocks. This option is exactly the opposite of discard option. This is set as default. .TP +.BI no_optimize_extents +Do not offer to optimize the extent tree by eliminating unnecessary +width or depth. +.TP .BI readahead_kb Use this many KiB of memory to pre-fetch metadata in the hopes of reducing e2fsck runtime. By default, this is set to the size of two block groups' inode diff --git a/e2fsck/e2fsck.conf.5.in b/e2fsck/e2fsck.conf.5.in index 0bfc76ab..94525baf 100644 --- a/e2fsck/e2fsck.conf.5.in +++ b/e2fsck/e2fsck.conf.5.in @@ -205,6 +205,10 @@ of that type are squelched. This can be useful if the console is slow (i.e., connected to a serial port) and so a large amount of output could end up delaying the boot process for a long time (potentially hours). .TP +.I no_optimize_extents +Do not offer to optimize the extent tree by eliminating unnecessary +width or depth. +.TP .I readahead_mem_pct Use this percentage of memory to try to read in metadata blocks ahead of the main e2fsck thread. This should reduce run times, depending on the speed of diff --git a/e2fsck/e2fsck.h b/e2fsck/e2fsck.h index f3568106..6ab4f9cc 100644 --- a/e2fsck/e2fsck.h +++ b/e2fsck/e2fsck.h @@ -169,6 +169,7 @@ struct resource_track { #define E2F_OPT_DISCARD 0x2000 #define E2F_OPT_CONVERT_BMAP 0x4000 /* convert blockmap to extent */ #define E2F_OPT_FIXES_ONLY 0x8000 /* skip all optimizations */ +#define E2F_OPT_NOOPT_EXTENTS 0x10000 /* don't optimize extents */ /* * E2fsck flags diff --git a/e2fsck/extents.c b/e2fsck/extents.c index 7f28e6dd..98cf7c37 100644 --- a/e2fsck/extents.c +++ b/e2fsck/extents.c @@ -521,6 +521,9 @@ errcode_t e2fsck_should_rebuild_extents(e2fsck_t ctx, if (eti->force_rebuild) goto rebuild; + if (ctx->options & E2F_OPT_NOOPT_EXTENTS) + return 0; + extents_per_block = (ctx->fs->blocksize - sizeof(struct ext3_extent_header)) / sizeof(struct ext3_extent); diff --git a/e2fsck/unix.c b/e2fsck/unix.c index b7322bc6..b6025535 100644 --- a/e2fsck/unix.c +++ b/e2fsck/unix.c @@ -709,6 +709,9 @@ static void parse_extended_opts(e2fsck_t ctx, const char *opts) } else if (strcmp(token, "nodiscard") == 0) { ctx->options &= ~E2F_OPT_DISCARD; continue; + } else if (strcmp(token, "no_optimize_extents") == 0) { + ctx->options |= E2F_OPT_NOOPT_EXTENTS; + continue; } else if (strcmp(token, "log_filename") == 0) { if (!arg) extended_usage++; @@ -1007,6 +1010,11 @@ static errcode_t PRS(int argc, char *argv[], e2fsck_t *ret_ctx) if (c) verbose = 1; + profile_get_boolean(ctx->profile, "options", "no_optimize_extents", + 0, 0, &c); + if (c) + ctx->options |= E2F_OPT_NOOPT_EXTENTS; + if (ctx->readahead_kb == ~0ULL) { profile_get_integer(ctx->profile, "options", "readahead_mem_pct", 0, -1, &c); |