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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;
--
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