TheCloud/fuse-overlayfs
1
0
Fork 0
mirror of https://github.com/containers/fuse-overlayfs.git synced 2025-09-13 09:17:42 -04:00
Code Issues Packages Projects Releases Wiki Activity

main: introduce inodes cache

Browse Source 
introduce a hash map to refer from an inode to the file paths.
A recent change where we enable FUSE writeback by default uncovered an
underlying issue in fuse-overlayfs where changes to a file with
multiple links would not be visible from the other link.

For each inode, maintain a list of nodes that refer to it, so that we
can still access it when a link is removed and more importantly we can
use the inode value with FUSE.

Closes: https://github.com/containers/fuse-overlayfs/issues/108
Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1744109

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
This commit is contained in:
Giuseppe Scrivano 2019-08-22 23:16:36 +02:00
parent f8ba9ade20
commit b25bbde64d
No known key found for this signature in database
GPG Key ID: E4730F97F60286ED
2 changed files with 420 additions and 243 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

654
main.c
View File

File diff suppressed because it is too large Load Diff

9
tests/unlink.sh
View File

@ -10,4 +10,13 @@ unlink merged/a
test \! -e merged/a test \! -e merged/a
echo hello > merged/foo
ln merged/foo merged/foo2
rm merged/foo
grep hello merged/foo2
ln merged/foo2 merged/foo
echo world >> merged/foo2
grep hello merged/foo
grep world merged/foo
umount merged umount merged