598a597636
-----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEqG5UsNXhtOCrfGQP+7dXa6fLC2sFAl+ayiUACgkQ+7dXa6fL C2uZAg//cVeuhu1cUMzNZwE9VotL0a3GXGl+5S1pyJ4lEiKOylJYyxJxsGEG6YiE GxDt9wx78P679Y3VJchDjo7voBXbPqRYFxnbXyq5X/xhNfExRqXhkauao8jWMaku 77UzretUtav7JmgxkGtQ8eMpYkrua7YqcdvMEVjSJ/TqQi68lcU+rMBTO7UnkURb YD43XyFI7D7XXfXpywTc0PYRQi9pEvXryb2OlEvLHLiS0hV9Zj32i6WWmn8GfnhQ Q9107kHYZFU2B+O+IbbImkKtlpC9X0yCAGGi2vDd0RirqKK/gfkMlK0XzwjnvzR4 PoqnMs2yjwcanxTrDD/3gr6MfZ2KRnmrLO6cdRmI3ldSsbkFOSeoQ0DYr4JDdal9 27OixazIcqmZfIssHwOH5pGZvO9bu5+2hlwdZZV7uISORJnqHZZVZ04Bdy+0chZx JTVeyYH2+FDRUM55heVnuI1r6xCbHRyj3On4GF1n8uKrEinkVaEMZCWWcOHlNYnG C3DC6MGxS1DRox/bNcBql9Jk6RkzPI/gzliQA92yAngMtOzyn+uZjqftASVve17R K9/nSQ/43E9LMc+DIEJ+8KSOkSN1zb6dAJ24Z8g7s+VbVb78WwHxojNjb8J9EfW3 lo/eTprYtZvidE8PJTisdzyaJooUifMAMhy8eFwPaXdqwRc7Sjc= =v0Gd -----END PGP SIGNATURE----- Merge tag 'afs-fixes-20201029' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs Pull AFS fixes from David Howells: - Fix copy_file_range() to an afs file now returning EINVAL if the splice_write file op isn't supplied. - Fix a deref-before-check in afs_unuse_cell(). - Fix a use-after-free in afs_xattr_get_acl(). - Fix afs to not try to clear PG_writeback when laundering a page. - Fix afs to take a ref on a page that it sets PG_private on and to drop that ref when clearing PG_private. This is done through recently added helpers. - Fix a page leak if write_begin() fails. - Fix afs_write_begin() to not alter the dirty region info stored in page->private, but rather do this in afs_write_end() instead when we know what we actually changed. - Fix afs_invalidatepage() to alter the dirty region info on a page when partial page invalidation occurs so that we don't inadvertantly include a span of zeros that will get written back if a page gets laundered due to a remote 3rd-party induced invalidation. We mustn't, however, reduce the dirty region if the page has been seen to be mapped (ie. we got called through the page_mkwrite vector) as the page might still be mapped and we might lose data if the file is extended again. - Fix the dirty region info to have a lower resolution if the size of the page is too large for this to be encoded (e.g. powerpc32 with 64K pages). Note that this might not be the ideal way to handle this, since it may allow some leakage of undirtied zero bytes to the server's copy in the case of a 3rd-party conflict. To aid the last two fixes, two additional changes: - Wrap the manipulations of the dirty region info stored in page->private into helper functions. - Alter the encoding of the dirty region so that the region bounds can be stored with one fewer bit, making a bit available for the indication of mappedness. * tag 'afs-fixes-20201029' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: afs: Fix dirty-region encoding on ppc32 with 64K pages afs: Fix afs_invalidatepage to adjust the dirty region afs: Alter dirty range encoding in page->private afs: Wrap page->private manipulations in inline functions afs: Fix where page->private is set during write afs: Fix page leak on afs_write_begin() failure afs: Fix to take ref on page when PG_private is set afs: Fix afs_launder_page to not clear PG_writeback afs: Fix a use after free in afs_xattr_get_acl() afs: Fix tracing deref-before-check afs: Fix copy_file_range() |
||
|---|---|---|
| .. | ||
| acpi | ||
| asm-generic | ||
| clocksource | ||
| crypto | ||
| drm | ||
| dt-bindings | ||
| keys | ||
| kunit | ||
| kvm | ||
| linux | ||
| math-emu | ||
| media | ||
| memory | ||
| misc | ||
| net | ||
| pcmcia | ||
| ras | ||
| rdma | ||
| scsi | ||
| soc | ||
| sound | ||
| target | ||
| trace | ||
| uapi | ||
| vdso | ||
| video | ||
| xen | ||