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Message-ID: <5230DAAE.2040900@redhat.com> Date: Wed, 11 Sep 2013 16:03:42 -0500 From: Eric Sandeen <sandeen@...hat.com> To: ext4 development <linux-ext4@...r.kernel.org> Subject: [PATCH] e2fsprogs: add -i switch to filefrag to ignore inline data Sometimes we simply want to know what blocks are allocated to a file. By default, filefrag will show us inline data as well, printing an extent record (and extent count) whether it's inline or not. Add an "-i" switch to Ignore Inline data, so that when specified, the extent count & table output only reflects normally allocated blocks. Signed-off-by: Eric Sandeen <sandeen@...hat.com> --- diff --git a/misc/filefrag.8.in b/misc/filefrag.8.in index a6d7b27..6b2ce1d 100644 --- a/misc/filefrag.8.in +++ b/misc/filefrag.8.in @@ -8,7 +8,7 @@ filefrag \- report on file fragmentation .BI \-b blocksize ] [ -.B \-BeksvxX +.B \-BeiksvxX ] [ .I files... @@ -43,6 +43,9 @@ is unspecified it defaults to 1024 bytes. .B \-e Print output in extent format, even for block-mapped files. .TP +.B \-i +Ignore all inline extent records in the extent table and counts. +.TP .BI \-k Use 1024\-byte blocksize for output (identical to '\-b 1024'). .TP diff --git a/misc/filefrag.c b/misc/filefrag.c index 35b3544..4652606 100644 --- a/misc/filefrag.c +++ b/misc/filefrag.c @@ -50,6 +50,7 @@ int sync_file = 0; /* fsync file before getting the mapping */ int xattr_map = 0; /* get xattr mapping */ int force_bmap; /* force use of FIBMAP instead of FIEMAP */ int force_extent; /* print output in extent format always */ +int no_inline; /* do not show FIEMAP_EXTENT_DATA_INLINE, only blocks */ int logical_width = 8; int physical_width = 10; const char *ext_fmt = "%4d: %*llu..%*llu: %*llu..%*llu: %6llu: %s\n"; @@ -135,8 +136,11 @@ static void print_extent_info(struct fiemap_extent *fm_extent, int cur_ex, char flags[256] = ""; /* For inline data all offsets should be in bytes, not blocks */ - if (fm_extent->fe_flags & FIEMAP_EXTENT_DATA_INLINE) + if (fm_extent->fe_flags & FIEMAP_EXTENT_DATA_INLINE) { + if (no_inline) + return; blk_shift = 0; + } ext_len = fm_extent->fe_length >> blk_shift; ext_blks = (fm_extent->fe_length - 1) >> blk_shift; @@ -229,6 +233,15 @@ static int filefrag_fiemap(int fd, int blk_shift, int *num_extents, } for (i = 0; i < fiemap->fm_mapped_extents; i++) { + if (fm_ext[i].fe_flags & FIEMAP_EXTENT_LAST) + last = 1; + /* Skip this extent if it's inline and we are ignoring */ + if (no_inline && + (fm_ext[i].fe_flags & FIEMAP_EXTENT_DATA_INLINE)) { + n++; + continue; + } + if (fm_ext[i].fe_logical != 0 && fm_ext[i].fe_physical != expected) { tot_extents++; @@ -242,8 +255,6 @@ static int filefrag_fiemap(int fd, int blk_shift, int *num_extents, blk_shift, st); expected = fm_ext[i].fe_physical + fm_ext[i].fe_length; - if (fm_ext[i].fe_flags & FIEMAP_EXTENT_LAST) - last = 1; n++; } @@ -445,7 +456,7 @@ out_close: static void usage(const char *progname) { - fprintf(stderr, "Usage: %s [-b{blocksize}] [-BeklsvxX] file ...\n", + fprintf(stderr, "Usage: %s [-b{blocksize}] [-BeiklsvxX] file ...\n", progname); exit(1); } @@ -455,7 +466,7 @@ int main(int argc, char**argv) char **cpp; int c; - while ((c = getopt(argc, argv, "Bb::eksvxX")) != EOF) + while ((c = getopt(argc, argv, "Bb::eiksvxX")) != EOF) switch (c) { case 'B': force_bmap++; @@ -495,6 +506,9 @@ int main(int argc, char**argv) if (!verbose) verbose++; break; + case 'i': + no_inline++; + break; case 'k': blocksize = 1024; break; -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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